get an asus or gigabyte amd 64 mobo
Hell no! DO NOT get either of those boards. Both are ridiculously crappy. ASUS sucks balls and has been for a while now. Their quality has gone way downhill and after this post I expect Ag3 to step in and backup this claim. Also I expect him to backup the claim that gigabyte boards do not support the latest and fastest low timings.
Go with an Abit or MSI Board. Try to go for a Socket 939 as those will be better in the long run because AMD will upgrade them and they support dual Channel. Both mobo's are about $125 US and the cheapest socket 939 chip is the 3500+ I believe at $350 US.
If you go with either manufacturer and socket 939 get the ABit AV8-3rd Eye or the MSI Neo2-Platinum. I just built a 64 system with the MSI Neo2-Platinum and it's EXCELLENT. It's corecenter program reads your temps and fan speeds quite nicely and it has quite a bit of options in the BIOS if you chose to overclock.
Conclusion: Socket 939, ABit AV8-3rd Eye, or MSI Neo2-Platinum
EDIT: BTW, if you can mustar up cash for a SATA 10,000 RPM drive you should go for it. They are amazing. Windows is up and loaded in about 15 seconds. Real quick load times, file copy times, and installation times. Really comes in handy on that first format with windows updates and restarts galore.