This is a list of all the enchantments I know and the required materials. If you want something done, don't hesitate to ask.
Boots
Minor Agility (+1) - 6x strange dust, 2x lesser astral essence
Lesser Agility (+3) - 1x soul dust, 1x lesser mystic essence
Agility (+5) - 2x lesser nether essence
Greater Agility (+7) - 8x greater eternal essence
Dexterity (+12 agility) - 8x arcane dust, 8x greater planar essence
Superior Agility (+16) - 16x infinite dust, 4x greater cosmic essence
Lesser Spirit (+3) - 6x strange dust, 1x lesser astral essence
Spirit (+5) - 2x greater eternal essence, 1x lesser eternal essence
Greater Spirit (+18) - 12x infinite dust, 3x greater cosmic essence
Minor Stamina (+1) - 8x strange dust
Lesser Stamina (+3) - 4x soul dust
Stamina (+5) - 5x vision dust
Greater Stamina (+7) - 10x dream dust
Fortitude (+12 stamina) - 12x arcane dust
Greater Fortitude (+22 stamina) - 3x infinite dust, 3x lesser cosmic essence
Minor Speed (+8% movement speed) - 1x lesser nether essence, 1x small radiant shard, 1x aquamarine
Cat's Swiftness (+8% movement speed/+6 agility) - 8x large prismatic shard, 8x primal air
Tuskarr's Vitality (+8% movement speed/+15 stamina) - 12x infinite dust, 2x greater cosmic essence, 4x dream shard, 1x abyss crystal
Assault (+24 attack power) - 4x infinite dust, 4x lesser cosmic essence
Greater Assault (+32 attack power) - 12x infinite dust, 1x greater cosmic essence, 2x dream shard 4x abyss crystal
Icewalker (+12 crit/hit rating) - 8x infinite dust, 1x crystallized water
Vitality (4 mana and health/5 sec) - 6x arcane dust, 4x major healing potion, 4x major mana potion
Greater Vitality (6 mana and health/5 sec) - 8x infinite dust, 2x greater cosmic essence
Bracers
Minor Agility (+1) - 2x strange dust, 1x greater magic essence
Minor Deflection (+2 defense rating) - 1x strange dust, 1x lesser magic essence
Lesser Deflection (+3 defense rating) - 2x soul dust, 1x lesser mystic essence
Deflection (+5 defense rating) - 2x dream dust, 1x greater nether essence
Major Defense (+12 defense rating) - 10x arcane dust, 2x small prismatic shard
Lesser Intellect (+3) - 2x greater astral essence
Intellect (+5) - 2x lesser nether essence
Greater Intellect (+7) - 3x lesser eternal essence
Exceptional Intellect (+16) - 10x infinite dust
Minor Spirit (+1) - 2x lesser magic essence
Lesser Spirit (+3) - 2x lesser astral essence
Spirit (+5) - 1x lesser mystic essence
Greater Spirit (+7) - 1x vision dust, 3x lesser nether essence
Superior Spirit (+9) - 10x dream dust, 3x lesser eternal essence
Major Spirit (+18) - 16x infinite dust, 4x greater cosmic essence
Minor Health (+10) - 1x strange dust
Minor Stamina (+1) - 3x strange dust
Lesser Stamina (+3) - 2x soul dust
Stamina (+5) - 6x soul dust
Greater Stamina (+7) - 5x dream dust
Superior Stamina (+9) - 15x illusion dust
Major Stamina (+40) - 4x greater cosmic essence, 1x abyss crystal
Minor Strength (+1) - 5x strange dust
Lesser Strength (+3) - 2x soul dust
Strength (+5) - 1x vision dust
Greater Strength (+7) - 2x dream dust, 1x greater nether essence
Superior Strength (+9) - 6x illusion dust, 6x greater eternal essence
Brawn (+12) - 6x arcane dust
Stats (+4 to all) - 6x arcane dust, 6x lesser planar essence
Greater Stats (+6 to all) - 16x infinite dust, 1x greater cosmic essence
Mana Regeneration (4 mana/5 seconds) - 16x illusion dust, 5x greater eternal essence, 2x essence of water
Restore Mana Prime (6 mana/5 seconds) - 8x greater planar essence
Assault (+24 attack power) - 6x arcane dust
Striking (+38 attack power) - 6x infinite dust
Greater Assault (+50 attack power) - 24x infinite dust, 6x greater cosmic essence
Expertise (+15) - 14x infinite dust, 3x greater cosmic essence
Healing Power (+15) - 20x illusion dust, 4x greater eternal essence, 2x large brilliant shard, 6x living essence
Superior Healing (+15) - 4x greater planar essence, 4x primal life
Spellpower (+15) - 6x large prismatic shard, 8x primal fire, 8x primal water
Greater Spellpower (+23) - 8x infinite dust, 4x lesser cosmic essence
Superior Spellpower (+30) - 6x infinite dust, 6x greater cosmic essence, 1x dream shard
Chest
Minor Health (+5) - 1x strange dust
Lesser Health (+15) - 2x strange dust, 2x lesser magic essence
Health (+25) - 4x strange dust, 1x lesser astral essence
Greater Health (+50) - 3x soul dust
Major Health (+100) - 6x illusion dust, 1x small brilliant shard
Exceptional Health (+150) - 8x arcane dust, 2x large brilliant shard, 4x major healing potion
Mighty Health (+200) - 3x greater cosmic essence
Super Health (+275) - 20x infinite dust, 4x greater cosmic essence
Minor Mana (+5) - 1x lesser magic essence
Lesser Mana (+20) - 1x lesser magic essence, 1x greater magic essence
Mana (+25) - 2x lesser astral essence, 1x greater astral essence
Greater Mana (+50) - 1x greater mystic essence
Major Mana (+100) - 3x greater eternal essence, 1x small brilliant shard
Exceptional Mana (+250) - 8x infinite dust, 4x tiger lily
Minor Stats (+1 to all) - 1x soul dust, 1x greater astral essence, 1x large glimmering shard
Lesser Stats (+2 to all) - 2x vision dust, 1x greater mystic essence, 1x large glowing shard
Stats (+3 to all) - 3x dream dust, 2x greater nether essence, 1x large radiant shard
Exceptional Stats (+6 to all) - 4x arcane dust, 4x greater planar essence, 4x large prismatic shard
Super Stats (+8 to all) - 4x infinite dust, 2x lesser cosmic essence
Powerful Stats (+10 to all) - 4x dream shard, 4x abyss crystal
Defense (+15) - 8x arcane dust, 4x greater planar essence, 4x eternium ore
Greater Defense (+22) - 10x infinite dust, 1x eternal earth
Major Resilience (+15) - 10x arcane dust, 4x greater planar essence
Exceptional Resilience (+20) - 2x greater cosmic essence, 2x dream shard
Restore Mana Prime (6 mana/5 seconds) - 2x arcane dust, 2x lesser planar essence
Greater Mana Restoration (8 mana/5 seconds) - 4x infinite dust, 4x greater cosmic essence
Major Spirit (+15) - 2x greater planar essence
Minor Absorption (2% chance per hit of 10 points of life drain) - 2x strange dust, 1x lesser magic essence
Lesser Absorption (5% chance per hit of 25 points of life drain) - 2x strange dust, 1x greater astral essence, 1x large glimmering shard
Cloak
Minor Agility (+1) - 1x lesser astral essence
Lesser Agility (+3) - 2x lesser nether essence
Greater Agility (+12) - 4x arcane dust, 1x greater planar essence, 1x primal air
Superior Agility (+16) - 9x infinite dust
Major Agility (+22) - 8x infinite dust, 2x greater cosmic essence, 2x dream shard
Speed (+15 haste rating) - 6x infinite dust
Greater Speed (+23 haste rating) - 16x infinite dust, 4x greater cosmic essence
Stealth (+1 to stealth rating) - 3x greater planar essence, 3x small prismatic shard, 2x fel lotus
Shadow Armor (+1 to stealth rating, +10 agility) - 12x infinite dust, 1x greater cosmic essence, 1x dream shard 1x abyss crystal
Minor Protection (+10 armor) - 3x strange dust, 1x greater magic essence
Lesser Protection (+20 armor) - 6x strange dust, 1x small glimmering shard
Defense (+30 armor) - 3x soul dust, 1x small glowing shard
Greater Defense (+50 armor) - 3x vision dust
Superior Defense (+70 armor) - 8x illusion dust
Major Armor (+120 armor) - 8x arcane dust
Mighty Armor (+225 armor) - 15x infinite dust, 2x greater cosmic essence
Steelweave (+12 defense rating) - 8x greater planar essence, 8x primal earth
Titanweave (+16 defense rating) - 8x infinite dust, 2x dream shard, 2x titanium bar
Dodge (+12 dodge rating) - 3x greater planar essence, 3x small prismatic shard, 8x primal earth
Minor Resistance (+1 to all) - 1x strange dust, 2x lesser magic essence
Resistance (+3 to all) - 1x lesser nether essence
Greater Resistance (+5 to all) - 2x lesser eternal essence, 1x heart of the wild, 1x core of earth, 1x globe of water, 1x breath of wind, 1x ichor of undeath
Major Resistance (+7 to all) - 4x greater planar essence, 4x primal fire, 4x primal earth, 4x primal air, 4x primal water
Greater Arcane Resistance (+15) - 4x large prismatic shard, 8x primal mana
Lesser Fire Resistance (+5) - 2x greater astral essence, 1x fire oil
Fire Resistance (+7) - 1x lesser mystic essence, 1x elemental fire
Greater Fire Resistance (+15) - 3x greater planar essence, 3x small prismatic shard, 4x essence of fire
Superior Fire Resistance (+20) - 4x greater cosmic essence, 1x eternal water
Superior Frost Resistance (+20) - 6x infinite dust, 3x greater cosmic essence, 1x eternal fire
Greater Nature Resistance (+15) - 3x greater planar essence, 2x small prismatic shard, 4x living essence
Superior Nature Resistance (+20) - 15x infinite dust, 1x greater cosmic essence, 1x eternal shadow
Lesser Shadow Resistance (+10) - 1x greater astral essence, 1x shadow protection potion
Greater Shadow Resistance (+15) - 4x large prismatic shard, 8x primal shadow
Superior Shadow Resistance (+20) - 12x infinite dust, 2x lesser cosmic essence, 1x eternal life
Spell Penetration (+20) - 6x arcane dust, 2x greater planar essence, 2x primal mana
Spell Piercing (+35) - 15x infinite dust
Subtlety (-2% threat) - 2x greater planar essence, 4x small prismatic shard, 8x primal shadow
Wisdom (-2% threat, +10 spirit) - 15x infinite dust, 3x greater cosmic essence, 2x dream shard, 6x abyss crystal
Gloves
Agility (+5) - 1x vision dust, 1x lesser nether essence
Greater Agility (+7) - 3x illusion dust, 3x lesser eternal essence
Superior Agility (+15) - 3x greater planar essence, 3x small prismatic shard, 2x primal air
Major Agility (+20) - 4x greater cosmic essence, 4x dream shard
Strength (+5) - 3x vision dust, 2x lesser nether essence
Greater Strength (+7) - 4x illusion dust, 4x greater eternal essence
Major Strength (+15) - 12x arcane dust, 1x greater planar essence
Assault (+26 attack power) - 8x arcane dust
Greater Assault (+35 attack power) - 6x infinite dust, 1x greater cosmic essence
Crusher (+44 attack power) - 20x infinite dust, 4x greater cosmic essence, 1x dream shard
Blasting (+10 crit rating) - 4x arcane dust, 1x lesser planar essence
Precise Strikes (+15 hit rating) - 2x arcane dust, 8x greater planar essence, 2x large prismatic shard
Precision (+20 hit rating) - 15x infinite dust, 5x greater cosmic essence
Minor Haste (+10 haste rating) - 2x large radiant shard, 2x wildvine
Expertise (+15) - 20x infinite dust, 2x greater cosmic essence
Major Healing (+20) - 6x greater planar essence, 6x large prismatic shard, 6x primal life
Major Spellpower (+20) - 6x greater planar essence, 6x large prismatic shard, 6x primal mana
Exceptional Spellpower (+28) - 4x infinite dust, 1x lesser cosmic essence
Riding Skill (+4% mount speed) - 3x dream dust, 2x large radiant shard
Threat (+2% threat) - 2x greater planar essence, 4x small prismatic shard, 8x primal life
Armsman (+10 parry rating and +2% threat) - 2x dream shard, 8x eternal earth
Fishing (+2) - 1x soul dust
Herbalism (+2) - 1x soul dust, 3x kingsblood
Advanced Herbalism (+5) - 3x vision dust, 3x sungrass
Mining (+2) - 1x soul dust, 3x iron ore
Advanced Mining (+5) - 3x vision dust, 3x truesilver bar
Skinning (+5) - 1x vision dust, 3x green whelp scale
Gatherer (+5 herbalism, mining, and skinning) - 1x greater cosmic essence
Shield
Resistance (+5 to all) - 6x large prismatic shard, 3x primal air, 3x primal earth, 3x primal fire, 3x primal water
Frost Resistance (+8) - 1x large radiant shard, 1x frost oil
Lesser Protection (+30 armor) - 1x strange dust, 1x lesser astral essence, 1x small glimmering shard
Intellect (+12) - 4x greater planar essence
Greater Intellect (+25) - 12x infinite dust
Lesser Spirit (+3) - 4x strange dust, 2x lesser astral essence
Spirit (+5) - 1x vision dust, 1x greater mystic essence
Greater Spirit (+7) - 2x dream dust, 1x greater nether essence
Superior Spirit (+9) - 4x illusion dust, 2x greater eternal essence
Minor Stamina (+1) - 2x strange dust, 1x lesser astral essence
Lesser Stamina (+3) - 1x soul dust, 1x lesser mystic essence
Stamina (+5) - 5x vision dust
Greater Stamina (+7) - 10x dream dust
Major Stamina (+18) - 15x arcane dust
Lesser Block (+10 block rating) - 2x vision dust, 2x greater mystic essence, 1x large glowing shard
Shield Block (+15 block rating) - 12x arcane dust, 4x greater planar essence, 10x primal earth
Tough Shield (+18 block value) - 6x arcane dust, 10x primal earth
Defense (+20) - 6x infinite dust, 6x eternal earth
Resilience (+12) - 4x lesser planar essence, 1x large prismatic shard
Weapon (2H)
Minor Impact (+1 damage) - 4x strange dust, 1x small glimmering shard
Lesser Impact (+3 damage) - 3x soul dust, 1x large glimmering shard
Impact (+5 damage) - 4x vision dust, 1x large glowing shard
Greater Impact (+7 damage) - 2x dream dust, 2x large radiant shard
Superior Impact (+9 damage) - 10x illusion dust, 4x large brilliant shard
Savagery (+70 attack power) - 40x arcane dust, 4x large prismatic shard
Greater Savagery (+80 attack power) - 6x infinite dust, 2x greater cosmic essence
Massacre (+110 attack power) - 40x infinite dust, 6x greater cosmic essence, 6x abyss crystal
Agility (+25) - 14x illusion dust, 6x greater eternal essence, 10x large brilliant shard, 4x essence of air
Major Agility (+35) - 20x illusion dust, 6x greater planar essence, 8x large prismatic shard
Lesser Intellect (+3) - 3x greater magic essence
Major Intellect (+9) - 12x greater eternal essence, 2x large brilliant shard
Lesser Spirit (+3) - 6x strange dust, 1x lesser astral essence
Major Spirit (+9) - 12x greater eternal essence, 2x large brilliant shard
Scourgebane (+140 attack power against undead) - 6x infinite dust, 6x dream shard
Weapon (Any)
Minor Striking (+1 damage) - 2x strange dust, 1x greater magic essence, 1x small glimmering shard
Lesser Striking (+2 damage) - 2x soul dust, 1x large glimmering shard
Striking (+3 damage) - 2x greater mystic essence, 1x large glowing shard
Greater Striking (+4 damage) - 2x greater nether essence, 2x large radiant shard
Superior Striking (+5 damage) - 10x greater eternal essence, 2x large brilliant shard
Major Striking (+7 damage) - 6x arcane dust, 6x greater planar essence, 2x large prismatic shard
Agility (+15) - 4x illusion dust, 6x greater eternal essence, 6x large brilliant shard, 2x essence of air
Greater Agility (+20) - 8x arcane dust, 4x greater planar essence, 6x large prismatic shard, 2x primal air
Exceptional Agility (+26) - 12x infinite dust, 6x greater cosmic essence, 2x dream shard, 1x eternal air
Strength (+15) - 4x illusion dust, 6x greater eternal essence, 6x large brilliant shard, 2x essence of earth
Potency (+20 strength) - 20x arcane dust, 5x greater planar essence, 4x large prismatic shard
Mighty Intellect (+22) - 20x illusion dust, 12x greater eternal essence, 15x large brilliant shard
Major Intellect (+30) - 10x greater planar essence, 2x large prismatic shard
Mighty Spirit (+20) - 15x illusion dust, 8x greater eternal essence, 10x large brilliant shard
Exceptional Spirit (+45) - 30x infinite dust, 2x dream shard
Greater Potency (+50 attack power) - 2x infinite dust, 4x lesser cosmic essence
Superior Potency (+65 attack power) - 10x infinite dust, 2x greater cosmic essence, 2x dream shard, 4x abyss crystal
Healing Power (+29) - 8x greater eternal essence, 4x large brilliant shard, 6x living essence, 6x essence of water, 1x righteous orb
Major Healing (+40) - 8x large prismatic shard, 8x primal water, 8x primal life
Major Spellpower (+40) - 8x greater planar essence, 8x large prismatic shard
Exceptional Spellpower (+50) - 10x infinite dust, 2x greater cosmic essence
Mighty Spellpower (+63) - 16x infinite dust, 4x greater cosmic essence, 4x dream shard, 6x abyss crystal
Sunfire (+50 fire and arcane damage) - 8x greater planar essence, 10x large prismatic shard, 12x void crystal, 6x primal fire, 1x primal might
Winter's Might (+7 frost spell damage) - 3x vision dust, 3x great mystic essence, 1x large glowing shard, 2x wintersbite
Minor Beastslayer (+2 damage to beasts) - 4x strange dust, 2x greater magic essence
Lesser Beastslayer (+6 damage to beasts) - 1x lesser mystic essence, 1x small glowing shard, 2x large fang
Lesser Elemental Slayer (+6 damage to elementals) - 1x lesser mystic essence, 1x small glowing shard, 1x elemental earth
Demonslaying (chance on hit of stun and extra damage to demons) - 2x dream dust, 1x small radiant shard, 1x elixir of demonslaying
Giant Slayer (chance on hit of reducing movement speed and extra damage to giants) - 2x greater cosmic essence, 6x dream shard
Fiery Weapon (chance on hit of 40 fire damage) - 4x small radiant shard, 1x essence of fire
Icebreaker (chance on hit of 72-85 fire damage) - 4x dream shard, 4x eternal fire
Accuracy (+25 critical strike and hit rating) - 20x infinite dust, 4x greater cosmic essence, 4x dream, 6x abyss crystal
Berserking (chance on hit for -25% armor and +400 attack power) - 12x infinite dust, 2x greater cosmic essence, 10x dream shard, 10x abyss crystal
Black Magic (chance on spellcast to curse the target with 1100 shadow damage over ten seconds) - 16x infinite dust, 4x greater cosmic essence, 6 dream shard, 8x abyss crystal
Crusader (chance on hit of +100 strength for 15 seconds and 75-125 hp heal) - 4x large brilliant shard, 2x righteous orb
Icy Chill (chance on hit of slowing the target) - 4x small brilliant shard, 1x essence of water, 1x essence of air, 1x icecap
Lifestealing (chance on hit of draining health from the target) - 6x large brilliant shard, 6x essence of undeath, 6x living essence
Lifeward (chance on hit of healing for 140-160) - 4x abyss crystal
Unholy Weapon (chance on hit of reducing the target's damage by 15) - 4x large brilliant shard, 4x essence of undeath
Items
Enchanted Leather - 1x lesser eternal essence, 1x rugged leather
Enchanted Thorium - 3x dream dust, 1x thorium bar
Minor Mana Oil (4 mana/5 sec) - 3x soul dust, 2x maple seed, 1x leaded vial
Lesser Mana Oil (8 mana/5 sec) - 3x dream dust, 2x purple lotus, 1x crystal vial
Brilliant Mana Oil (12 mana/5 sec, +25 healing) - 2x large brilliant shard, 3x purple lotus, 1x imbued vial
Superior Mana Oil (14 mana/5 sec) - 3x arcane dust, 1x netherbloom, 1x imbued vial
Minor Wizard Oil (+8 spell damage) - 2x strange dust, 1x maple seed, 1x empty vial
Lesser Wizard Oil (+16 spell damage) - 3x vision dust, 2x stranglethorn seed, 1x leaded vial
Wizard Oil (+24 spell damage) - 3x illusion dust, 2x firebloom, 1x crystal vial
Brilliant Wizard Oil (+36 spell damage, +1% spell crit) - 2x large brilliant shard, 3x firebloom, 1x imbued vial
Superior Wizard Oil (+42 spell damage) - 3x arcane dust, 1x nightmare vine, 1x imbued vial
Prismatic Sphere (+3 to all resists, red/yellow/blue socket) - 4x large prismatic shard
Void Sphere (+4 to all resists, red/yellow/blue socket) - 2x void crystal
Lesser Magic Wand (11.3 dps arcane) - 1x lesser magic essence, 1x simple wood
Greater Magic Wand (17.5 dps arcane) - 1x greater magic essence, 1x simple wood
Lesser Mystic Wand (25.4 dps arcane) - 1x soul dust, 1x lesser mystic essence, 1x star wood
Greater Mystic Wand (29.0 dps arcane) - 1x vision dust, 1x greater mystic essence, 1x star wood
I do NOT have the following formulas, and I would be indebted to you if you happened to find one and send it to me. I will, of course, be willing to pay you for your help. Many of the Burning Crusade formulas are unfortunately BoP, but they're listed here anyway. Partly as a reminder to myself, partly so you're aware that I don't have them... Yet. And, of course, if you're an enchanter yourself, you'll know where to get them.
Boots
Boar's Speed (+9 stamina/+8% movement speed) - Outland world drop (65+ mobs).
Surefooted (+5% snare and root resistance/+10 hit rating) - Phantom Stagehand. BoP.
Bracers
Fortitude (+12 stamina) - Coilfang Oracles in the Steamvault. BoP.
Chest
Greater Stats (+4 to all) - Extremely rare world drop, apparently from level 55-62 elite mobs.
Cloak
Superior Arcane Resistance (+20) - Frostbrood Spawns at Sindragosa's Fall in Icecrown. Mostly unfarmable for melee.
Gloves
Fire Power (+20 fire damage) - Ahn'Qiraj bosses. BoP.
Frost Power (+20 frost damage) - Ahn'Qiraj bosses. BoP.
Healing Power (+20 healing) - Ahn'Qiraj bosses. BoP.
Shadow Power (+20 shadow damage) - Ahn'Qiraj bosses. BoP.
Shield
Weapon (2H)
Weapon (Any)
Spell Power (+30 ) - Molten Core bosses. BoP.
Battlemaster (Chance on hit to heal nearby party members for 180-300) - Outland world drop (65+ mobs).
Deathfrost (Chance on hit to deal 150 frost damage and slow movement/attack/cast speed by 15%) - Lord Ahune. BoP.
Spellsurge (Chance on spellcast to restore 100 mana over 10 seconds to all nearby party members) - Outland world drop (65+ mobs).
Mongoose (Chance on hit to increase agility by 120) - Moroes. BoP.
Soulfrost (+54 shadow and frost damage) - Terestian Illhoof. BoP.
Executioner (Chance on hit to ignore 840 armor) - Zul'Aman bosses. BoP.