I have a OWC SSD that I'd like to use as an external disc with my MacBook Air 13" (latest).

Is USB 2.0 my only hope? I'd really like to connect via a faster method but barely any Thunderbolt drives out there (the $500 LaCie featuring a non-SSD drive is the only one).

Would have loved to go SSD (SATA) --> Firewire 800 but that's not happening.

Any ideas?