Originally Posted by mwdowns
EDITED to add: if I have the drivers already setup in Windows, will it be a problem just to switch out the cards?
Nope, in the worst case it will do a refresh for you. If it asks for a CD or driver, just point it to your CD (in which case it'll automatically find it for you anyway). If you install the driver from executing a downloaded file, just re-run that file to reinstall the driver. I've done it numerous times w/o any problem. Yeah, I also agree that if the 6800GS is actually cheaper, get it, exchange your 6600GT for it.