I've only ridden about a week and a half out of the last month. When there's much of a chance of ice, or any actual ice, I rock the busaru. Going down on ice last year was enough for me, and it sounds like I had a similar fall to yours. At some point I'm going to buy a second bike that can take studded tires. Right now I'm drooling over the Kona Sutra.
Riding in today for the first time in a week felt great though.