I've classically trained piano for about 15 years. The last coupla years was a bit dry because I didn't have much access to a piano (moved) but now I have a full sized keyboard again *loves* so I'm practicing pretty much every day.
That said, I'm formally qualified to teach (L.Mus.A), and plan to do so in the coming months! I also play french horn, but I don't practice that much.
Music has always been and as far as I can tell, always will be a huge part of my life. I write music a lot and it's really the one thing that will keep me sane. I think that's not least because some of the training I did was pretty darn intense. Nowadays I lament that I can't spend 6 hours a day on the piano, because that would be how much I actually need just to keep my repertoire going nicely.
Strangely, I too want to play guitar, having been hooked on Guitar Hero 2 (and I don't have a PS2, how sad is that).