Well i think the first question to ask yourself is why do you need to have a RAID setup? You only have two drives. It's not going to improve your speed if that's what you're trying to accomplish. Fo that, you'll need SCSI drives. A RAID ( Redundant Array of Independent Drives) is basically for file storage with lots of drives connected.

but considering I probably know as much about RAIDs as you do, I coul dbe wrong. But from what I do know, that's just about right.