Well this is my main hobby now, before I got into astronomy seriously I was an avid online games fan.. I still enjoy playing them occassionally but just don't have the time anymore, as I wasn't just a casual player, I was right into it.. Was running a successful gaming clan, was a gameop for Telstra GameArena, palying in clan matches etc.. it just took up too much time and didn't leave enough time for my growing interest in astronomy.
Plus, my 3rd baby was born and I knew I just wouldn't have time for 2 time-consuming hobbies, so I had to choose one
I've always been interested in sport too, played basketball in several local competitions, played A-grade tennis for a few years, playing mixed-netball at the moment, and have been on a fitness trip this year doing some jogging and a bit of weight training (have lost 12 kilos!).
My other main hobby is family.. have 3 young kids (5.5 yr old boy Jacob, 3.5 yr old girl Eliza, and 7 month old girl Abbey), they definitely keep me busy!
Started trying to be an amateur photographer as well with my digital camera, but my life leaves little time to develop that hobby very much.
btw loopy i'm jealous!