I've played AD&D, the original Traveller, Palladium games (all of them, I think...), World of Darkness, and GURPS. GURPS is by-far my favorite system.
I do have a slight preference for low-fantasy, roleplay, and intrigue. However, I'm open to many things, from heavy-roleplay to old-fashioned dungeon crawls, modern, sci-fi, or fantasy.
I'm not really into anime, or most video-game settings. Mature themes are fine.
I enjoy writing background fluff, so if you would like help working on settings or adventures, I'd be very interested in that as well.