I got the Epox 8KLM2 Mini-ATX board; integrated sound and video. Most people will probably hate it, as it uses a Savage4 video chip and takes SDRAM instead of DDR. I got it because I knew its sound would work in both DOS and Windows and because I already had plenty of SDRAM. It also has Suspend-to-RAM and power on after power failure support, which is helpful in a cabinet environment. I got it bundled with an Athlon XP 2000+, and so far I'm pretty happy with it.
--Chris