As a late MST3K fan (since I saw the movie on TV one night years ago) I feel silly that I didn't find out about this sooner, despite the awesomeness of the concept
http://www.rifftrax.com/
got the Casino Royale one (which also features Kevin Murphy/ Tom Servo) and watched about half an hour of it to check out the quality, which Is pretty great so far, syncing is a bit awkward at first but I just listen to the commentary on my mp3 player while watching the movie, and it seems to work fine.
anyone else try any of these yet?