I have the Asus A7V w/ a built-in Promise Controller. I heard that running RAID 0 can thereotically double the speed of your I/O. Does it come near that performance in practice? I also heard that many people do no suggest getting another HD just to do a RAID 0, b/c RAID is primary for data redundacy/ reliability. What are other cost effective ways of speeding up system performance w/o implementing a RAID 0, such as putting the swapping file in another HD if avialable.