I guess I'll list mine, starting from must-have to maybe:
Definite buys
World of Warcraft: Cataclysm (PC)
Starcraft II (PC)
Zelda (Wii)
FFXIII (360)
Halo: Reach(360)
Mega Man 10 (Wii)
Monster Hunter 3 (Wii)
Dragon Quest IX (DS)
Probable
Tales of Graces (Wii)
Metroid Other M (Wii)
The Last Guardian (PS3)
AA Investigations: Miles Edgeworth (DS)
No More Heroes 2 (Wii)
Epic Mickey (Wii)
Maybe
Bayonetta (360)
Zangeki no Reginleiv (Wii)
Sin & Punishment 2 (Wii)
Arc Rise Fantasia (Wii)
Super Mario Galaxy 2 (Wii)
This doesn't necessarily reflect how badly I want to play the games in order, only their priority on the buy-list (considering price, usage in house, etc). I can rent and play single player games, but I can't rent Starcraft online or WoW!
I've also got a bunch of older games I need to buy... not going to be easy with this goddamn amazing 2010 Wii lineup!