I've had no problems running a 2.5" SSD from the Seagate Thunderbolt adapter sled (STAE128). I like that option since I can pop in any drive I want (or use the sled to connect 3.5" drives through Thunderbolt, though using some additional cables and power).
With that setup you could snag one of the Crucial 480GB SSDs for $260 and the adapter for $90 and have a pretty awesome setup.
I think the Lacie rugged works well, though I haven't done any tests. (And I do get SATAIII speeds from the Seagate adapter).