Installing the ML 2006 on this MB is quite eventless. It works. Watching DVDs works fine (i.e. it`s not too slow for this task) out of the box. Haven't tried the divX yet. No idea how much faster the SP8000 will be when I re-compile the Xorg, but "out of the box" the 3D stuff is deadly slow.
I added the plf and contrib as urpmi sources, and installed the pre-copiled ivtv and myth* rpms. Also seems to work OK, but m still missing the fb device associated with PVR350. Now I'm stuck on trying to get a frequencies list for Austria. :-(
In the meantime I tried recompiling the kernel, which just proved what we already know: this machine shouldn't be used for CPU intensive tasks.
BTW, the machine needs ca. 40W, and runs withouth any fans. Its getting somewhat warm, but seems to be stable for now. Let's see hw long will it survive. .-)