I was starting to get a little frustrated by both the thing I was working on and the way Sublime was checking its spelling; out of the frustration came a VERY sketchy (release early, release often, I guess) interface to OS X's spell-check system. Benefits include a better-populated dictionary, stronger replacement suggestions, and detection of multiple languages. You can check it out at https://github.com/phyllisstein/CheckBounce.
As of 23 March, it's been backwards-ported to Sublime Text 2 and largely functions as a (surprisingly fast) background thread while you're working. Contextual menu items now allow you to learn, ignore, and get suggestions for words (by right-clicking on them). Aside from waiting for new region drawing methods to be implemented, it seems largely stable. Please do let me know if anything breaks, however.