I wouldn't say I'm a nerd...but definitely a Geek here.
Big into Video games, Sci fi, Electronic trends,Computer savvy, Anime/Manga/Comics. LOL But I think there are different stages of being a Geek. I have friends who are described as "Super Geeks!" (They get very technical with their passions in life)
I get over-excited by both science and stupidity (did you see that there was a group that calculated the speed of the winds on a planet 150 light years away? So cool). I did the whole role playing games, Magic cards, fantasy and sci-fi books (mostly stuff from the seventies plus/minus) as a kid. University cured me of the compulsion to constantly read. And the other stuff... to be honest I really like a good board game once in a while but the other stuff is just too much of a time investment. Between work, gym, food, sleep I don't see it happening.