I just purchased an XFX 5750 for 139.99 at TigerDirect. It was the cheapest I could find. I was going to get a 5770, but after much research, I have found that overclocking the 5750 is very easy and can get you to an average performance of an 5770 in most cases with the stock cooling that comes with the 5750,
I cannot run above 1280x1024 as it is and I don't foresee myself getting a wider monitor for quite awhile. Probably by the time that comes, I'll be upgrading the system anyways (or overhauling it).
So after much research, I've decided upon the 5750 regardless of price. Sure, for $150 to $160, I could get an actual 5770, but I just feel that I don't need to worry about it. I know some will think I wimped out, but hey, I'm just trying to save some money and all the research I've looked at has shown that an overclocked 5750 can run as good as a 5770 that is not overclocked.
Yeah.. you totally wimped out.
An overclocked 5770 can even perform far much better than an OCed 5750