Let me know if you're interested.
TF2 is great because you can jump in, play for 10-30 minutes, and hop
back out. Conceivably you could play on a regular basis while still
getting stuff done. The same cannot really be said of, oh, say, World
of Warcraft. >:/
I thought the presentation on Shadow was informative and the
presentation on Archaeopteryx was highly entertaining, especially if
you're a fan of electronic music and don't mind talks that go off on
tangents a little bit.