Trying to find a decent upgrade for my wife's PC. She has a 7600GS in it right now, its a small-medium sized Gateway case, and the Power supply is only 450W. Basically the card needs to be the same physical size as the 7600GS, give a few cm to an inch. So far the options are an 8600GT, X1650, and...well thats preety much it. Trying to keep this below $150, and both those options are ****, but the 8600GT is only $109 and performs a good 40% better than the 7600GS according to the benches here. Anyways...what do you guys think?