My list.
I already have:
Civilization 4 (I regret buying it - it was released at late alpha / early beta.)
Valkyrie Profile (did not have time to play it last semester; rerelease & sequel will be out this year)
Battle for Wesnoth (v1.0 released recently)
I will probably buy:
Dominions 3
Dragon Quest 8 (highest JRPG review score in quite a while...)
Galactic Civilizations 2
Elder Scrolls IV: Oblivion (I'd settle for Elder Scrolls 3 bug-free
)
I might buy:
Land of Legends
Wierd Worlds
Space Empires V (if micromanagement is vastly reduced, the population model becomes realistic, and the AI is much better)
I watching, with fingers crossed:
Heroes of Might and Magic V (unknown developer, but screenshots look awesome!)
Supreme Commander (Total Annihilation sequel, by Chris Taylor)
The Witcher
Gothic III
Atelier Iris: Eternal Mana 2 (Super cute!!!!)
Valkyrie Profile: Silmaria
Jagged Alliance 3/3D/Disciples III (all same developer)
I will not buy (but others might):
World of Warcraft Expansion (too much wasted time on base game...)
The Legend of Zelda: Twilight Princess (no Gamecube, but it looks like the first good Zelda since Zelda III, IMO.)
Edit: Removed "Hellgate: London" from my buy list after further information was revealed.