So I'm upgrading my 27" 2010 to my new 27" 2012 with Fusion. I want to get a Thunderbolt external hard drive enclosure to remove the 512gb SSD from my OLD computer to attach to my new computer. I'm having a heck of a time finding a thunderbolt enclosure, let alone one that's reasonable cost. I am looking on Amazon and only see one by JBird, and it's $300 just for an enclosure (vs $30 for USB 3) My understanding is if booting off the drive, Thunderbolt is the way to go. Is this accurate? Suggestions as to an enclosure? Thanks!