Go with an EPoX motherboard. I have one and it works great. Check out this article from Anandtech:
NOTE: all this stuff is for the non-SLI versions of the boards.
EPoX and DFI both got the Editor's Choice award. Also, according to the graphs, EPoX isn't behind the DFI by much as far as overclocking and gaming performance goes. The EPoX even beats the DFI in using the stock multiplier for overclocking. DFI beats EPoX with their onboard audio, but who the hell cares about onboard audio, right?
The EPoX is also about $25 cheaper on Newegg.
I haven't done much researching on the SLI versions of these boards, but I just browsed threw some reviews on Newegg, and they seem to be just as good. The EPoX 9NPA+ SLI board is still about $25 cheaper than the cheapest DFI SLI board.