one good thing about tigerdirect is that those products they sell with the tag " 30 month guarantee" can be returned for WHATEVER reason you want in 30 days
for example, you bought a 6800GS and found out that it cant play your fav game at preferable settings, then you can send em back the card and ask for your money back
but remember if you want a very fast card, get a bigger psu so it wont burn the card and also a faster cpu so it wont bottleneck it.
Intel Core 2 Duo E6420 Conroe 2.13ghz
Gigabyte P35-S3 Motherboard
A-DATA 2x1GB DDR2 800mhz memory
Geforce 8600GT 256MB GDDR3 PCI-Express