and for anyone after one of these i got one for sale..
At least on a VIA MII-12000 motherboard, you need to specify:
option "ForcePCIMode" "on"
in your XF86Config or xorg.conf file or X will randomly hang when DRI is enabled.
It's a pretty good guess the problem is related to the fact that the MII-12000 doesn't even have an AGP bus
I should suffix that with the problem only showed up after using the stock SuSE 9.3 radeon driver from the 2.6.11.whatever kernel.