I have a rowing machine, but that is really pretty boring. A trainer w/ a ton of intense workouts will be most of my winter exercise. If I can figure out what x country ski gear to get I may go that route. It's been 30 years since I xc skied and I imagine it'll be pretty expensive like cycling. Also mentioned was snowshoeing which has peaked my curiosity? Who does this regularly, how expensive is it and what are the physical benefits? I figure while snowshoeing, photography is also a great option, kind of a two for one.