I bought a chaintech FX 5700...first one died within 2 months, RMA'd it, got the new one back last september, now that one is already dying, it's the reason I got the 6600GT last month. Never will I get chaintech again.
accually one of my friends tested a x600 pro with 256 and a x600 pro with 128 meg ram, and 256 performed better >.>
Well so you know the x600 is absolute crap. The 6600GT can perform quite on par with an X800pro...
For $180 you can't beat it.
$184 at zipzoomfly, free 2nd day shipping
$189 at newegg, and right now up until April 4th it's .99cents for shipping