look at my spec i see 96FPS. CPu E5200 I suggest to change the mobo to this http://www.overclockers.co.uk/showproduct.php?prodid=MB-277-AS&groupid=701&catid=5&subcat=1155
Ram 2 Gb 800Mhz and 8600Gt or 9600Gt but not the 9500gt cos my pc builder told me the 8600Gt performs better
Prepare to be shot down.xbox 360 is the best solution for me.
I've just brought a itx system to replace my gaming pc, as i feel the 360 is a better more affordable option. As well as being more future proof, till the next generation of consoles come out.
Obviously this isn't the case for everyone or every game, but games like CoD4 were developed around the 360, so performance on them is optimum.