I use a MBPr and an external hard drive for photo editing (in Adobe Lightroom). The external drive is my "working drive" where I keep all the photos I'm working on. Problem is, my drive died last night. It was a a 500 GB Seagate Momentus XT (a 7200rpm hybrid drive) in an Owen Digital Mini Pro enclosure. I'm looking to replace it with either a Lacie Rugged Mini 500 GB 7200rpm drive, or get a SSD drive to use in an enclosure, (either the one I have, or a better one). A third option would be a G-Drive mobile (1 TB 7200), and a final option is a 1 TB HGST 7200 drive to put in an enclosure (it's the cheapest option). I'm not sure which will be more reliable. The Lacie Rugged has a good reputation, but SSDs don't have the moving parts to fail....but I'm not sure I really trust external enclosures. I've lost a few hard drives, all laptop drives in external enclosures. What do you suggest?