Short notice, but for anyone near Virginia, this weekend is MAGfest 4, Jan 13th-16th. (Music and Games Festival, formally Mid-Atlantic Game Festival)
Video game room, tournaments, 2 video game concerts, panels, and a video room.
I went last year and had a great time, finally getting to see a Minibosses concert, in addition to the other video game band performances.
Here is a Documentary video of Magfest 2
http://video.google.com/videoplay?docid=-8997644485740293162&q=magfest