I've had very good results with the Shuttle AK31a. I had wanted a RAID board, but was concerned about RAID on-board BIOS conflicting with my Adaptec 29160 SCSI board BIOS. I've tried adding an ACARD ATA/133 RAID adapter and two ATA/133 drives. No problems - all three BIOS (m/b, SCSI, RAID)...