A long long time ago, probably around the time Back to the Future came out, I chose the silly handle "big bear". Unfortunately, it stuck (probably because it's so close to "big beer"). Only a little while (and a change from C=64 to Amiga) later, Soundtracker came out. Since then I've never managed to quit fiddling with computer / electronic music.
Nowadays, my early contact with computers has turned into a job as a Google software engineer, but I still compose stuff as a hobby.