This page lists recipes available from faction NPCs, mobs that drop BoP recipes (ie, the enchanter has to farm these themselves), and as world drops.

NPC
Specific mob drop
Specific mob drop - instance
World drop

NPC

• Formula: Enchant Shield - Intellect
  Aged Dalaran Wizard, Escape from Durnholde (Old Hillsbrad)

• Formula: Enchant Bracer - Superior Healing
  Honor Hold, Friendly

• Formula: Enchant Cloak - Spell Penetration
  Consortium, Friendly

• Formula: Enchant Gloves - Spellstrike
  Cenarion Expedition, Revered

• Formula: Enchant Gloves - Major Spellpower
  Keepers of Time, Honored

• Formula: Enchant Gloves - Major Healing
  The Sha'Tar, Honored

• Formula: Enchant Weapon - Major Healing
  The Sha'Tar, Revered

Specific mob drop

• Formula: Enchant Cloak - Greater Arcane Resistance
  Eclipsion Archmage, Shadowmoon

• Formula: Enchant Cloak - Greater Shadow Resistance
  Voidshrieker, Netherstorm

• Formula: Enchant Bracer - Major Defense
  Ethereum Nullifier, Netherstorm

• Formula: Enchant Bracer - Spellpower
  Bloodmaul Geomancer, Blade's Edge Mountains

• Formula: Enchant Weapon - Major Spellpower
  Bash'ir Spell-Thief, Blade's Edge Mountains

• Formula: Enchant Weapon - Major Intellect
  Sunfury Researcher, Netherstorm

Specific mob drop - instance

• Formula: Enchant Boots - Dexterity
  Raging Skeleton, Auchenai Crypts

• Formula: Enchant Boots - Fortitude
  Ethereal Priest, Mana Tombs

• Formula: Enchant 2H Weapon - Savagery
  Shattered Hand Centurion, Shattered Halls

• Formula: Enchant Bracer - Fortitude
  Coilfang Oracle, The Steamvault

• Formula: Enchant 2H Weapon - Major Agility
  Eredar Deathbringer, Arcatraz

• Formula: Enchant Weapon - Mongoose
  Moroes, Karazhan

• Formula: Enchant Weapon - Sunfire
  Shade of Aran, Karazhan

• Formula: Enchant Weapon - Soulfrost
  Karazhan?

• Formula: Enchant Boots - Surefooted
  Phantom Stagehand, Karazhan

World drop

Expect to see these on the AH for vast amounts of money...

• Formula: Enchant Boots - Cat's Swiftness
• Formula: Enchant Boots - Boar's Speed
• Formula: Enchant Weapon - Battlemaster
• Formula: Enchant Weapon - Spellsurge
• Formula: Enchant Weapon - Potency
• Formula: Enchant Chest - Major Resilience
• Formula: Enchant Shield - Shield Block
• Formula: Enchant Bracer - Restore Mana Prime
• Formula: Enchant Cloak - Major Resistance
• Formula: Enchant Boots - Vitality
• Formula: Enchant Shield - Resistance