Left 4 Dead - Zombie survival game that is supposed to be very "realistic" like an escape from a city full of zombies thing, with online co-op play.
Borderlands - Mad Max beyond thunderdome kinda setting. But with as many weapons and armor pickups as Diablo 2. Its an FPS with some RPG characteristics thrown in.
Banjo Kazooie: Nuts and Bolts- Its the old fashioned game I grew up with but now you can build your own vehicles to complete challenges within the world. Plus online multiplayer with the vehicles you built.
Star Wars Unleashed- obviously
KOTOR MMO - Was Apparently announced at E3.
Fable 2 - Online Co-Op in fable...
Diablo 3 - Been waiting sooooooooooooooooooooo long for this.
Fall Out 3 - Take Oblivion and set it in an apocolyptic wasteland with guns and even more customization.
Gears of War 2 - Flamethrowers and human shields.
Call of Duty: World at War - Flamethrowers and sniping from trees.
Zoids Assault - I was a huge fan of the show, and apparently there is some crazy customization on the zoids.
Mortal Kombat vs. DC - So random it has got to be good.
I think that is everything... I'll be working 3 jobs in the meant-time to pay for all of these...