You can find several on Newegg in the P945 and P965 flavor. If you plan on overclocking, you might want to adjust your budget though.
Edit: sillywabbit, here's review of the Foxconn P9657AA-8KS2H.
You can definately trust the reviewer. It looks like it's weakness is the inability to adjust the CPU's multiplier which could suck for overclockers. However, there's been two BIOS updates since the review which may
have added the feature. I'm not betting on it because I cannot find any info on what the BIOS updates entail but it would certainly be nice.
At $100 it would make a decent value OCg board with the ability to adjust multipliers.