I used to use Steve's sheet, but SpellGen evolved from that and is light years better. It does everything that sheet did and it is updated:
3.5e Campaign
3.5e (Psionic) Campaign
Eberron Campaign
Forgotton Realms Campaign
Unearthed Arcana Spell Points Campaign
Avatar's Handbook
Battle Magic: The Eldritch Storm
Book of Eldritch Might
Book of Eldritch Might 2
Book of Eldritch Might, 3.5E
Book of Exalted Deeds
Book of Hallowed Might
Book of Vile Darkness
Complete Adventurer
Complete Arcane
Complete Divine
Complete Mage
Complete Psionic
Complete Scoundrel
Complete Warrior
Crusades of Valor
Defenders of the Faith
Deities and Demigods
Draconomicon
Dragon Magazine
Dragon Magic
Dungeon Masters Guide 3.5E
ECS - Eberron
ECS - Faiths of Eberron
ECS - Five nations
ECS - Magic of Eberron
ECS - Players Guide to Eberron
ECS - Races of Eberron
ECS - Secrets of Sarlona
ECS - Sharn
ECS - WotC Web Enhancements
Expanded Psionics Handbook
FRCS - Champions of Ruin
FRCS - City of Splendors: Waterdeep
FRCS - Faiths and Pantheons
FRCS - Forgotten Realms Campaign
FRCS - Lords of Darkness
FRCS - Lost Empires of Faerun
FRCS - Magic of Faerun
FRCS - Players Guide to Faerun
FRCS - Races of Faerun
FRCS - Serpent Kingdoms
FRCS - Shining South
FRCS - Unapproachable East
FRCS - Underdark
Frostburn
Heroes of Battle
Libris Mortis
Lords of Madness
Manual of the Planes
Masters of the Wild
Mind's Eye
Miniatures Handbook
Necromancy: Beyond the Grave
Oriental Adventures
Planar Handbook
Players Handbook 3.5E
Player's Handbook II 3.5
Quintessential Cleric
Quintessential Elf
Quintessential Wizard
Races of Destiny
Races of Stone
Races of the Dragon
Races of the Wild
Rokugan
Sandstorm
Slayers Guide to Amazons
Song and Silence
Spell Compendium
Stormhaven: City of Thousand Spires
Stormwrack
Tome and Blood
Tome of Magic
Unearthed Arcana
Weapons of Legacy
Wild Spellcraft
Wizards of the Coast
www.MonteCook.com
I mean, it allows you to generate spell lists like that old Excel sheet but includes spells from all of the above sources and the classes! Also you can pick and choose what spells you want it to generate, it kicks but. It also autocalcs all save DC's, magic items, specilication, spell focus, and more.
What I need though is something to keep track of spells prepared at the table, some nice organized sheet.