Lists

Here's a few lists. First, "official" third edition (including 3.5) Dungeons & Dragons products that I own.

Third Edition

• Player's Handbook
• Dungeonmaster's Guide
• Monster Manual
• Monster Manual II
• Fiend Folio
• Tome and Blood
• Sword and Fist
• Defenders of the Faith
• Races of Destiny
• Frostburn
• Draconomicon
• Lords of Madness
• Fiendish Codex I
• Fiendish Codex II
• Elder Evils
• Manual of the Planes
• Deities & Demigods
• Epic Level Handbook
• Book of Vile Darkness
• Savage Species
• Unearthed Arcana
• Dungeonmaster's Guide II
• Psionic Handbook
• Eberron
• Sharn: City of Towers
• Races of Eberron
• Monster Manual 3.5

Wizards of the Coast non-D&D RPG Products

• Star Wars
• Star Wars Revised
• Alien Anthology
• Call of Cthulhu
• d20 Modern
• d20 Past
• Urban Arcana

D&D Products to Buy:

• Complete Warrior
• Complete Arcane
• Complete Divine
• Complete Adventurer
• Complete Psionic
• Complete Mage
• Complete Scoundrel
• Complete Champion
• Races of Stone
• Races of the Wild
• Races of the Dragon
• Sandstorm
• Stormwrack
• Cityscape
• Dungeonscape
• Monster Manual III
• Monster Manual IV
• Monster Manual V
• Libris Mortis
• Drow of the Underdark
• Fane of the Drow
• Hellspike Prison
• Fields of Ruin
• Dragondown Grotto
• The Frostfell Rift
• City of Peril
• Ghostwalk
• Miniatures Handbook
• Book of Exalted Deeds
• Expanded Psionics Handbook
• Planar Handbook
• Heroes of Battle
• Heroes of Horror
• Magic of Incarnum
• Spell Compendium
• Weapons of Legacy
• Tome of Magic
• Player's Handbook II
• Tome of Battle: Book of Nine Swords
• Dragon Magic
• Magic Item Compenium
• Player's Handbook 3.5
• Dungeonmaster's Guide 3.5

Note: this includes a lot of products which I've prioritized very low.

Forgotten Realms Products to buy:

• Forgotten Realms Campaign Setting
• Player's Guide to Faerûn
• Races of Faerûn
• Power of Faerûn
• Faiths and Pantheons
• City of Splendors: Waterdeep
• Lost Empires of Faerûn
• Mysteries of the Moonsea
• Serpent Kingdoms
• Shining South
• Silver Marches
• Unapproachable East
• Underdark
• Lords of Darkness
• Champions of Valor
• Champions of Ruin
• Magic of Faerûn
• Dragons of Faerûn

Eberron Products to Buy:

• Five Nations
• Explorer's Handbook
• Magic of Eberron
• Player's Guide to Eberron
• Secrets of Xen'drik
• Faiths of Eberron
• Dragonmarked
• The Forge of War
• Secrets of Sarlona
• Dragons of Eberron
• City of Stormreach

Non-D&D WotC products to Buy:

• Star Wars SAGA edition
• d20 Future
• d20 Apocalypse
• d20 Cyberscape
• d20 Menace Manual
• d20 Dark•Matter
• d20 Future Tech