Would the 5,1 Mac Pro (flashed) benefit performance-wise from either/or an OSX software RAID 0 or a hardware RAID 0 of two SATA III drives? From a RAID 0 of two SSD's? I assume the fraction of the PCI bus bandwidth that is used is the overall bandwidth and that this is limited by SATA. Is it possible to saturate the PCI bus with SATA II or III HDs on a SATA (II or III) controller? Would there be any point in a RAID 0 of SSDs? Thanks in advance for any insights.