getting ready to build my first rig and was wondering what video card I should with? I was looking at either a GTX 660ti or a Radeon HD7950. Which do you guys prefer for a standard gaming rig?(BF3, Killing Floor, Diablo 3, ect.) or is that an overshot of what I need? could I run most games today on high settings with an HD7870 or the likes? advice/opinions are greatly appreciated, thanks