buying:
LBP
Left 4 Dead
Resident Evil: Umbrella Chronicles (it's got to come down in price this xmas, right? right?)
Spore
maybe:
Ratchet & Clank Future: Tools of Destruction
Ratchet & Clank Future: Quest for Booty
Starcraft 2 (I doubt it makes it though, probably a spring release since Blizzard knows it doesn't need the holiday push to sell a ton of copies.)