Have you done anything with SUSE Linux?
I just installed it on my ASUS P5GDC-V mobo. I have tried Mepis and Red Hat on it. Red Hat didn't work at all, I think because of the video. One version of Mepis worked with the video but not the SATA drive. It only worked with PATA.
So far SUSE 10.0 works with video, SATA and 100 Mb LAN. I still have to try it with RAID tho. SATA seems to be the inevitable wave of the future so I decided I better get ready to ride it.