My graphics card is extremely out of date, but I'm not very hardware-savvy. It'll be used mostly for gaming, so what should I upgrade to with a budget of $150 (after rebate)? Here're my specs:
Model: ASUS Desktop CM6870 Series
Processor: Intel Quad Core i5-3450 CPU @ 3.10 GHz
RAM: 12.0 GB
OS: Windows 7 Home Premium
PSU: Not entirely sure how to check, but I found a sticker on the case that states the model and also reads "Rating: 115/220-230V~, 7/4A, 60/50Hz"
EDIT: There are a few other cards that retail for $130 w/out rebates. You could also try for one of those and you'll end up with a total <$150 after shipping and taxes. I just chose EVGA because it is a very reputable brand.