Here's the list. Sorry about the order, it's kind of random.
- Battlesystem Skirmishes Miniatures Rules
- Monstrous Compendium Annual Volume 1
- Monstrous Compendium Annual Volume 2
- Monstrous Compendium Annual Volume 3
- Monstrous Compendium Appendix
- Monstrous Compendium Appendix 3
- Van Richten's Guide to the Created
- Van Richten's Guide to Vampires
- Van Richten's Guide to Ghosts
- Van Richten's Guide to the Ancient Dead
- Van Richten's Guide to Werebeasts
- Van Richten's Guide to the Lich
- Van Richten's Guide to Fiends
- Book of Crypts
- Feast of Goblyns
- Complete Book of Dwarves
- Complete Priest's Handbook
- Complete Thief's Handbook
- The Complete Book of Humanoids
- The Complete Book of Gnomes & Halflings
- The Complete Book of Villains
- The Complete Book of Necromancers
- The Complete Book of Rangers
- Arms and Equipment Guide
- Dungeon Master Screen & Index
- Legends & Lore
- A Hero's Tale
- Dungeon Builder's Guidebook
- Wizard's Spell Compendium Volume 1
- Player's Option: Spells & Magic
- Player's Option: Skills & Powers
- Tome of Magic
- Dungeon Master Guide
- Monstrous Manual
- Player's Guide
- Tales of Enchantment
- Temple, Tower & Tomb
- The Magic Encyclopedia Volume 1
- The Magic Encyclopedia Volume 2
PM me if you're interested in any.