Recently, I upgraded my old emachine to this 'beaut' : http://www.newegg.com/Product/Product.aspx?Item=N82E16883227392 and while it's a huge step up from my old piece of crap, it certainly can't handle everything I throw at it. Would anyone here mind making some recommendations for GPUs that they know will fit? I've had some bad experienced with buying cards that didn't meet the requirements in the past. Thanks, and sorry if this constitutes as a 'bad post'.
More aboutloooking upgrade
A AMD 7770, 7850 or 7870 should do, or A GTX 660 ti (or even a GTX 670 or AMD 7950 if you have the $$).
The best card that won't be bottlenecked by that CPU it is a Radeon 7870. I'd go for a 7850, great for it's price.