Could I do 3 500GB in a RAID 5, or RAID 0, and set up my 1TB as a RAID 1 redundancy type thingy? (I know I'd need 1.5TB if 3x 500GB were in RAID 0) But yeah...because I sense that a RAID 0 array is prone to failure, because it just takes one block (I'm not sure on that) to be corrupt, one drive to fail for them all to. I like the added benefits of speed, but I think it's only worth it if I can rebuild the array should it fail.