Hey Guys, I have my itunes library on a 500Gb internal on my Mac Pro. I only have around 20Gb left on the drive so obviously I need to think about increasing my storage. Can I create a concatenated RAID and add that drive to it without deleting the library? ie purchase second 500GB drive set it up as a concatenated RAID then add my original Library drive to the RAID without losing everything? Thanks in advance!