+10000 to "just do it" comments. I wussed out for the majority of the winter, mostly due to getting a new job and not really knowing how they'd react to it. When I had established myself in my position, and finally gotten sick of being "blah" every morning I just willed myself to do it. I only rode through snow/slush three or four times, but it was fine. The coldest day was -18F with quite a bit of snow/ice on the road.

I just rode slower than normal and gave myself plenty of room to stop. I also concur with another poster, if you are biking in the snow generally that's the only times cars are scared $@#$#less of you.

No real special gear is needed. I rode on a Specialized Hardrock with the stock tires this past winter, next winter will be the same bike except with some Nokians.