2012 2A Scholars' Conference online
Images, text, and audio files of presentations are online here. Presenters included Don Kates, Bob Cottrol, Joyce Malcolm, Randy Barnett (whose discussion of originalism is a very good background to the area), Josh Blackman, Steve Halbrook, Nick Johnson, and Ilya Shapiro. It was sponsored by the NRA Civil Rights Defense Fund.
UPDATE: the afternoon session audio files aren't ready yet, but will be online in a few days.