I recently set up 2 Seagate Barracuda drives (ST3500418AS, ST3500620AS) in RAID 0. The controller is a add on card (UGT-IS100R). Everything seems to be running fine but I am getting some weird numbers when I benchmark the array. The transfer rate is about 140MB/s and is about what I would be getting if the disks were not in RAID but my burst rate seems to be about correct.