I've been using Linux since around the Red Hat 5 days (at least that's the first distro I remember seriously trying to use), and now almost exclusively use Linux on my boxes except where Windows based software is required.
Professionally I'm a web developer, using PHP to build sites for clients, and also developing a product based on Jaws. If you havn't tried it, go do that now - it's so much better than Wordpress (and I'm not just saying that because I'm one of the devs ;))
Downtime is spent playing games, seeing friends, listening to music, and reading good books. I'd also like to be a movie buff, but rarely find the time to sit down and watch a whole film :P