Hay guys, mobo advice?

I'm getting a new rig soon, as mine is pretty outdated.
So far it consists of:
Intel Core 2 Duo 2.66ghz
Whatever 500gb HD
Radeon x1950XTX
DDR2 RAM (2gb) 800mhz
But as you can see, it lacks a mobo.
It needs to be a slot 775, and I know fuck all about these things.
SO any of you got an idea?

>>4
That's impossible. DX10 requires massive hardware-level support, and didn't exist when that card came out. If you want DX10, buy an 8800 (not recommended until nVidia gets their shit together) or a cheaper card until R600/better 8800s.

>>6
Do not listen to this poster. He is a dumbfuck for recommending overclocking to anyone who can't pick out his parts on his own; buy the best stuff you can afford and be happy with its stock performance.