Mako88:
I have an intel 2.4 oc-->2.88 ghz Asus P4P800E and upgraded to an ati x850xl 5.12 drivers from an ati 9600 and framerates for every game I play made a Huge Leap. I don't have sb pro pe yet so I can't benchmark the game for ya, but if your processor is as good(bad) as mine then I think you would do well to spend no more than $300 US and be good for a few years. Check out the nvidia 6800, they are very good from what I've read and fairly cheap too.!