Is your keyboard plugged into one of the blue USB ports on the back of the board?
Move it to one of the normal black (2.0) ports and restart. You have to load drivers before you can use the USB3.0 ports.
I think I've narrowed it down to the harddrive. The M5A97 supports 6gb/s SATA, but I'm still using one of the older SATA drives and cables. Problem is that no matter what configuration I use, I can't seem to get into the bios. If I remove all hard drives, then I can boot into bios just fine and even use a Windows 7 boot CD.
Without the drive though, its all pretty useless. Looking into a newer hard drive.
I got it up and running. It was an incredibly odd process, but here is what I found:
I unplugged the hard drive and just left the DVD drive in. After booting up into the bios and running off of a boot CD, I plugged in the hard drive and Windows was able to recognize it. Windows gave an error saying that the hard drive's controller was not enabled in the bios.
I reformatted the hard drive and restarted. Now the BIOS would recognize it, and subsequently Windows was able to install on it.