Enchanters

Tyliena

Boots
Tuskarr's vitality: +15 stamina, minor movement speed increase
Superior agility: +16 agility
Greater assault: +32 attack power
Greater vitality: +6 mp5, +6 hp5

Bracers
Brawn: +12 strength
Greater assault: +50 attack power
Major stamina: +40 stamina
Major intellect: +12 intellect
Greater stats: +6 all stats
Superior spellpower: +30 spell power

Chests
Greater defense: +22 defense rating
Super health: +275 hp
Powerful stats: +10 all stats
Greater mana restoration: +8 mp5

Cloaks
Greater speed: +23 haste rating
Major agility: +22 agility
Major resistance: +7 all resistances
Mighty armor: +225 armor
Shadow armor: +10 agility, slightly increased stealth
Spell penetration: +20 spell penetration
Subtlety: 2% reduced threat
Titanweave : +16 defense rating
Wisdom: Slightly reduced threat, +10 spirit

Gloves
Advanced mining: +5 mining skill
Armsman: +2% threat, 10 parry rating
Blasting: +10 spell critical strike rating
Crusher: +44 AP
Expertise: +15 expertise rating
Greater spellpower: +23 spell power
Major strength: +15 strength
Precision: +20 hit rating

Shields
Greater intellect: +25 intellect
Defense: +20 defense rating
Major stamina: +18 stamina
Resilience: +12 resilience
Shield block: +15 block rating
Tough shield: +18 block value

Weapons
Accuracy (melee weapon): +25 critical strike rating, +25 hit rating
Berserking: Occationally increase attack power at the cost of reduced armor
Black magic (melee weapon): Damaging spells sometimes inflict a painful curse
Crusader: Chance on hit: heal self 75-100, +100 strength for 15 seconds (reduced effect for players above level 60)
Executioner: Occasionally ignore 840 armor
Giant slayer: Chance to reduce movement speed and do damage against giants
Exceptional agility: +26 agility
Icebreaker: Occationally inflict fire damage
Lifeward: Chance on hit: heal the wielder (melee)
Major agility (2H weapon): +35 agility
Mighty spellpower: +63 spell power
Major striking: +7 damage
Massacre (2H weapon): +110 AP
Scourgebane (2H weapon): +140 AP against undead
Superior potency: +65 AP

Link to Wowhead and the enchants below Enchants and the mats needed for them...

As a guideline the enchants have been divided as such:

Isistra: Melee dps
Manus: Caster and 2H
Tyliena: Tanking

Edit by Tyliena: Tyliena and Isistra can do all of these enchants. 2009-01-01

Enchant name:	Effect:	Skill:	Cost:	Enchanter:	Learnt:
Enchant 2H Weapon - Massacre	Permanently enchant a two-handed weapon to increase attack power by 110	430	10	Manus	No
Enchant Weapon - Accuracy	Permanently enchant a melee weapon to increase critical strike and hit rating by 25	440	10	Isistra	Yes
Enchant Weapon - Berserking	Permanently enchant a melee weapon to sometimes increase your attack power by 400, but at the cost of reduced armor	440	10	Isistra	Yes
Enchant Weapon - Black Magic	Permanently enchant a melee weapon to cause your damaging spells to sometimes inflict a painful curse	440	10	Manus	No
Enchant Weapon - Giant Slayer	Permanently enchant a melee weapon to have a chance of reducing movement speed and doing additional damage against giants	430	10	Tyliena	Yes
Enchant Weapon - Icebreaker	Permanently enchant a melee weapon to sometimes inflict fire damage	425	10	Tyliena	Yes
Enchant Weapon - Lifeward	Permanently enchant a melee weapon to sometimes heal the wielder for 140 to 160 when striking in melee	440	10	Isistra	Yes
Enchant Weapon - Mighty Spellpower	Permanently enchant a melee weapon to increase spell power by 63	435	10	Isistra	Yes
Enchant Weapon - Scourgebane	Permanently enchant a two-handed melee weapon to increase attack power against Undead by 140	430	10	Manus	No
Enchant Weapon - Superior Potency	Permanently enchant a melee weapon to increase attack power by 65	435	10	Isistra	Yes
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Enchant Boots - Greater Assault	Permanently enchant boots to increase attack power by 32	440	4	Isistra	Yes
Enchant Boots - Tuskarr's Vitality	Permanently enchant boots to give a minor movement speed increase and 15 Stamina	440	4	Tyliena	Yes
-
Enchant Bracer - Superior Spellpower	Permanently enchant bracers to increase spell power by 30	440	4	Isistra	Yes
Enchant Bracers - Greater Assault	Permanently enchant bracers to increase attack power by 50	430	4	Isistra	Yes
-
Enchant Chest - Powerful Stats	Permanently enchant chest armor to increase all stats by 10	440	4	Isistra	Yes
-
Enchant Cloak - Greater Speed	Permanently enchant a cloak to increase haste rating by 23	430	4	Isistra	Yes
Enchant Cloak - Mighty Armor	Permanently enchant a cloak to give 225 additional armor	430	4	Tyliena	Yes
Enchant Cloak - Shadow Armor	Permanently enchant a cloak to increase stealth slightly and Agility by 10	440	4	Isistra	No
Enchant Cloak - Titanweave	Permanently enchant a cloak to increase defense rating by 16	435	4	Isistra	Yes
Enchant Cloak - Wisdom	Permanently enchant a cloak to reduce threat slightly and increase Spirit by 10	440	4	Isistra	Yes
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Enchant Gloves - Armsman	Permanently enchant gloves to increase threat caused by 2% and increase parry rating by 10	435	4	Tyliena	Yes