dont know all of them yet,but the ones i can think of off the bat r:
resistance 2
little big planet
mgs4 if i dont get it soon socom confrontation
call of duty: world at war
thats all i can think of right now, but theyre will probably be more

oh yea!!
and starwars force unleashed

conduit anybody? althpugh it probably wont come out for christmas. Depending on reviews, I'll go for sonic unleashed or CoD.
Guitar hero IV is a must have

Dudes, COD5 is done by Treyarch. They have NEVER done a descent COD game.

My list
Resistance 2
LBP
Gears 2
MotorStorm 2 (4 player split screen fun)
Spore
Fatal Frame
Prince of Persia
Rock Band 2

The rest still has to convince me (although that DICE game seems cool)

Animal Crossing: City Folk
Wii Speak
Kirby Super Star Ultra
Fire Emblem: New Dark Dragons and the Sword of Light
Wario Land: Shake It
Wii Music (possibly)

I might get any number of these before Christmas.

Fable 2
Gears 2

NHL 09
L4D
Fallout 3
One RPG (LO, LR or UI)
LBP

Maybe Resistance 2

wow, brace yourselves cause here we go:

Little Big Planet (PS3)
Resistance 2 (PS3)
FIFA 2009 (PS3)
PES 2009 (PS3)
Football Manager 2009 (PC)
Gears of War 2 (360)
Tiger Woods 2009 (PS3)
Star Wars Force Unleashed (Wii)
Saints Row 2 (360)
Fable 2 (360)
Bioshock (PS3)
Tom Clancys EndWar (PS3)
Far Cry 2 (PS3)
SOCOM Confrontation (PS3)
Call of Duty 5 (PS3 or Wii, i have yet to decide)
Fallout 3 (360)
Tekken 6 (PS3)
Crysis Warhead (PC)

Definitely
LBP, Motorstorm2, Gears 2(w/360) Tekken 6(if released)
Maybe
R2, SC4, Socom.

Resistance 2. Motorstorm 2. Street fighter 4. Tekken 6. (Little big planet). White knight story.

LittleBigPlanet, Valkyria Chronicles, Resistance 2, and maybe Eternal Sonata (depending on the release date).

Sadly most of the Wii games I want are hitting in '09 (Mad World, Little King's Story, etc.). :(