If you want a pure gaming motherboard, this is a super nice one. PCI-e x16 up the wall:
ASUS A8N32-SLI Deluxe Socket 939 NVIDIA nForce4 SLI X16 ATX AMD Motherboard - Retail
Yeah, it's over your price range I know, but if offers full 16x speed on each PCI-e x16 channel speeding up your video components. It's the best motherboard I have ever seen to date. Beautiful.
Or you can get the Fatal1ty board which has mysteriously dissapeared off the Newegg website.