I'm planning on buying a game sometime by the end of next month here are my choices. And I am having trouble deciding which game to buy. And feel free to tell me which is better or which I should buy instead of the ones I will list. (Not Battlefield: Bad Company either the demo was 6.5 quality)

Call of Duty 4: Modern Warfare

WarHawk

Rainbow Six: Vegas 2

Unreal Tournament 3

Rainbow Six: Vegas

The Orange Box

Rents:

Uncharted: Drake's Fortune

Battlefield: Bad Company (final version might be really good)

Heavenly Sword

Motorstorm

DIRT

Burnout: Paradise