I'm interesting in what the best options for external thunderbolt drives are, both in terms of enclosures for 3.5" SATA drives that I already have, as well as external thunderbolt drives with the drive included. I have two 3TB SATA drives in my Mac Pro that I'm going to have to convert to external solutions when I get a Haswell iMac. Would you keep the same drives and get enclosures? Or purchase external 3TB thunderbolt drives? And what would be the best option for each of those?