I'm a guitarist mostly, and I've been playing for a little over 3 years, though I've been steadily learning violin and piano for a few months now as well. I can't say I'm good enough at violin to record anything worth listening to yet, but I'm getting there.
Anyway, as far as the compositional side of being a musician goes, I tend to mostly compose orchestral music, though progressive rock is a love of mine as well, and I write some songs in that style occasionally too. I'm studying music at community college, and hoping to transfer to a 4 year school by the end of next year to study composition and perhaps expand my horizons to jazz.
I still have yet to be in a "real" band, though I've played live with a few sort of random groups of musicians in widely varied settings. My band at the moment is pretty much Reason 3.0 and myself, I guess I could say.