the 45 is supported. You might need a bios update depending on if you get an old board, but they run fine. And the GTS g92 only gets about a .05-1% increase in performance on a pci-2.0.
Aight, cool. I know based on the reviews, the mobo says buy it (none under 3 stars), but, how about this one?
Newegg.com - GIGABYTE GA-EP35-DS3P LGA 775 Intel P35 ATX Dynamic Energy Saver Ultra Durable II Intel Motherboard - Retail