I have two 2.5 SATA disks just lying around I was thinking of putting them in my mac pro, one in optical bay and one in 4th drive slot. One is 60gb and one is 80gb. Both are 5400RPM. I thought I could RAID-0 them and use as a Windows partition of a total 120GB. is this a good idea? would it be slower then a single 7200rpm?