The 5770 will be more than enough for that resolution. Sapphire are a good, solid make for ATI, the only other make i would suggest is XFX. Other than that, just get the cheapest one you can get (making sure it's 1GB and the clocks are right).
here is one from the site that you used above, for the money I'd definatley go with this if you budget is around 150 and no more, what power supply make and model? a 5770 will be more than enough for 1280X1024 most of the time but the gtx 460 768mb will be faster and a better investment at this point
My set up is:
ASUS M4A89GTD Pro
AMD ATHLON II X4 645 3.1GHz
Corsair XMS3 TW3X4G1333C9A 4GB
Antec EarthWatts 650w
Windows 7 64-bit
Coolermaster HAF 912
First build, tried to make it affordable yet easily upgradeable, but still run alright
The card right now is an integrated HD 4290, so I was thinking of sticking with ATI. Does NVIDIA make the better card?
your integrated chip doesnt matter, I'd still go with the gtx 460, it will last longer than a 5770, even at such a low res because when more advanced games come out even that low of a res will come into question eventually, and I would not bother with the 5670 it is significantly weaker than either the 5770 or gtx 460 768mb.
Your system looks good and in my opinion deserves the power of a gtx 460 768mb, if it were my system I would even push for the 1 gig model but I like higher end stuff and the 768mb model will serve your needs just fine now and in the future.
Thanks for posting this topic. I was also curious why some of them say it must have a 75 watt pci e connector. Is this the normal wattage for any PSU that has a pci e connector for a card? Also I have a on board ATI HD 3000 and AMD chipset so is it better to do an ATI card VS. NVIDIA?