Getting back into gaming again. My setup needs to be replaced, but it's not going to happen till at least next summer. So I'm looking to throw about $200-300 at my current setup. And thinking a graphics card is the way to go.
You'll want three things; new video card, new PSU to power it and an aftermarket cooler for the CPU so you can give it a good overclock if you are still using the stock cooler.
A good cooler will be $30 or so, PSU $50-60 probably which should leave you enough for perhaps an GTX 560 Ti or at least an HD6870 and come in under $300.
This would be a good choice for the cooler; http://www.newegg.com/Product/Product.aspx?Item=N82E168...
With that I believe you should be able to get up to 3.5ghz fairly easily which should help a lot.
There should be a lot of good deals tomorrow for Cyber Monday for the video card/PSU. I'd wait and see what pops up. Keep an eye on slickdeals; http://slickdeals.net/
There were GTX 560 Ti's and HD6950s for about $200 on Black Friday. Should be some tomorrow. For the PSU stick with a good brand like Antec, Corsair, Seasonic, Silverstone, OCZ, XFX and 500w or so should be fine.