Or if you get a SLI mobo you could SLI 2 6600's.
dragon2309 said:2 standard 6600's probably wouldnt even compare to a single 6800 GT. It ould be a waste of time and money, stick with the one top end card, go with either the nVidia GeForce 6800GT or the ATI X850 and you'll have a stunning setup. Just make sure you dont skimp on the RAM, haveing 1Gb is all good but mke sure its low latency.
Alos, are you planning to overclock your new system??
skidude said:Are you serious that a 6800 would perform better than 2 6600's!!!! I never knew that!!