So I have a G5 tower with SATAI 1.5gb/s onboard. I ALSO have a PCI-X SATAII 3gb/s card. I'm reconfiguring and setting up OSX software RAID0, possibly multiples, but in trying to figure out where to set the OS, where to set scratch disks, etc., does anyone know in PRACTICAL terms if SATA2 over PCI-X would be faster than SATA1 onboard? All drives are SATA2 so there's no bottlenecks on the drive hardware end. Just curious, I'm trying to get the most out of a system that is FINALLY starting to show its age.