I don't ride in as much cold weather as tsl does, but I do ride in a lot of rain in the winter. A couple of things that I would add about riding in the rain:

- Fenders, fenders, fenders. Makes a big difference. Even if you're just going out on wet roads, and it isn't actually raining, they make a big difference. If your bike won't take full regular fenders, get race blades.

- Dressing for rain can be even trickier than dressing for cold, because there is warm rain, cold rain, and *really* cold rain (just over freezing). It's easy to over-heat if you're bundling up to stay dry, so don't over do the warmth. I guess the only general thing I can say is that learning to dress in layers is critical -- in 50 degree rain I just throw a rain jacket over regular riding clothes, as the temperature goes down I add layers under my rain jacket.

My best bits of cold-weather gear are:

- Showers Pass Elite 2.0 jacket.
- Glove liners....wearing glove liners under thin full-finger gloves seems to work better for me than having one super-thick pair of gloves on. Warmer, and easier to ride my bike.
- I second what TSL said about having dedicated winter riding boots -- makes a big difference to me.

Finally, make sure you stay lit up when riding in the winter. Between the drizzle, gray skies, early sundowns, just make it a practice to keep a blinkie going on the back of the bike in the winter, at all times.