I'm a few months behind, but I finally got my CompuTrainer hooked up and am ready for some hardcore wintertime indoor training. Despite its benefits, I am not the biggest fan of indoor training, and try to ride only outside during the warmer months. But in Dec / Jan we just have too many sub-freezing days in Dallas. You can load various courses into the CompuTrainer, and it simulates going up and down hills and records lots of stats about how much I suck at bike racing.
I do have a nice 32" TV to help me through those grueling sessions- usually I'll watch a recorded triathlon (I have Kona 2010 saved for my first workout) or something suitably motivating. If not, then Homer will do.