Ive got the 7800 GTX from BFG. Its OC out of the box with a life time warrenty. I only got one for now. When they drop in price I will purchace the next one to enable SLI. I havnt checked out the FPS yet but will when I get a chance.
I can say this though, going from a 5900 to a 7800 is a HUGE step. But my whole system is way better then what I was running.
My old system:
AMD 2800(2.0 GHz)
1 gig RAM (PC 133)
5900XT vid card
My new system:
Gigabyte GA-K8NXP-SLI
AMD Athlon 64 3800+(2.4 GHz)
BFG GForce 7800 GTX OC out of box(life time warrenty)
2-1GB PC 3200 Corsair XMS RAM Cas 2
WD Raptor SATA 36.7Gig(10,000 RPM)
My new system is SWEET! All games maxed out and they run smooth as glass.