Pretty sure I mentioned this before, but anyone who remotely enjoyed "King of Kong" needs to look into "Chasing Ghosts" when it's released on DVD.
A lot of the same characters from "King of Kong" and the Twin Galaxies gang but it casts a wider net and covers all the games that were popular in the early 80s. A couple guys from Calgary are in there too, great documentary.
http://chasingghoststhemovie.com/