My system:
Q6600EVGA 8800GT 512MB4GB OCZ SLI ram
I plan to throw a 9800GT in there when they're released, then use the EVGA step-up to upgrade my existing card to run sli. Also look forward to overclocking the cpu+memory+gpu at that time as well.
The game runs at 1920x1200 and all effects enabled/maxed. When my entire fleet of 16caps+ship slots maxed is battling an opponent's fleet and I'm zoomed in up close, it does stutter a little bit. Just finished a 10player FFA last night