I am an SF fan, went to my first con sometime between 1979 and 1982, and am currently involved in running Satellite 1, a one-day con in Glasgow commemorating the launching of Sputnik 1 50 years ago, and I am also involved with Orbital, the 2008 Eastercon.
I am also a Heathen, and I run a Heathen moot in the city.
By the way, in case you are wondering, yes, most people do call me DC IRL...