Oh, and how could I forget - Focusrite has this one.
http://us.focusrite.com/i...interfaces/itrack-solo If the sound quality is anywhere near Scarlett's that would definitely be a winner.
One thing though - judging from my experience w/ them, you're probably better off sticking w/ the default Apple Core Audio driver.
After downloading their driver, I soon reverted to Apple's, which gave me better latency (by 3ms) and solved all the clicks and pops problems.
In fact, if I learned one thing in the last 2 years it is that Apple makes darn fine and solid audio drivers.