Is there any reason why I could not run my 150GB 10K SATA drive on the MacPro? I also have a Seagate SATAII 320GB drive and a 160GB Seagate SATA1 drive. Given this desktop will come with a SATAII drive of 160, 250 or 500, what combo am I looing at for max performance? Maybe get a second matching drive of one of my three drives to make a RAID setup? Thanks!