Enchanting is one of my favorite profession in the game and quite expensive as well to powerlevel but can make you a nice return of consistent gold income with disenchanting and selling of mats. With the launch of Wrath of the Lich King, I guess it is better to start of with the location of trainers:Alliance:
Elizabeth Jackson - 58,62 in Valgarde, Howling Fjord.
Alexis Marlowe - 57,71 in Valiance Keep, Borean Tundra.
Horde:
Eorain Dawnstrike - 41,53 in Warsong Hold, Borean Tundra.
Emil Autumn - 78,28 in Vengence Landing, Howling Fjord.
Neutral:
Enchanter Nalthanis - 38,39 in Dalaran.
Here is the powerleveling guide for enchanting 375 to 450. Kindly note that some of the steps are overlapping, so use the one which you have mats for or can be bought cheaply from the auction house:
375-385
Enchant Bracers - Exceptional Intellect – 10 Infinite Dust
Enchant Boots - Assault – 4 infinite Dust + 4 Lesser Cosmic Essence
380-390
Enchant Weapon - Greater Potency – 2 Infinite Dust + 4 Lesser Cosmic Essence
385-395
Enchant Boots – Icewalker – 8 Infinite Dust + 1 Crystallized Water
395-405
Enchant Cloak - Superior Agility – 9 Infinite Dust
400-410
Enchant Cloak - Superior Agility – 16 Infinite Dust + 3 Greater Cosmic Essence
410-420
Enchant Gloves- Precision – 15 Infinite Dust + 5 Greater Cosmic Essence
415-425
Enchant Boots- Superior Agility – 16 Infinite Dust + 6 Greater Cosmic Essence
420-430
Enchant Cloak- Major Agility - 18Infinite Dust + 6 Greater Cosmic Essence + 2 Dream Shard
Enchant Bracer- Major Spirit - 16 Infinite Dust + 12 Greater Cosmic Essence
430-440
Enchant Cloak- Migthy Armor - 20 Infinite Dust + 10 Greater Cosmic Essence
440-450
Enchant Weapon – Lifeward – 4 Abyss Crystal
Enchant Cloak – Shadow Armor - 20 Infinite Dust + 12 Greater Cosmic Essence + 1 Abyss Crystal
Kindly note that at enchanting level 430, you will need to obtain the Runed Titanium Rod which mats required are as follows:
1 x Titanium Rod
40 x Infinite Dust
12 x Greater Cosmic Essence
8 x Dream Shard
1 x Runed Eternium Rod
