We have launched a product using linuxbios here in Brasil, its a jukebox for pubs, but we use ogg vorbis and we have developed the entire system (including a hard disk distribution based in debian and one for the bios based in busybox). I have been using sis730 motherboards, but they are pretty scarce in the market right now. We use linuxbios for a faster boot, for maintenance, in case there is a HD problem, to avoid CMOS reset problems and because its cool ;)
Have a look at the machine:
(website in portuguese).