Join Date: Dec 2011
Location: Medford, OR
Bikes: Kona MTN bike, Bent TW Elegance
I have a pair of Novara fleece lined tights that are very water resistant. They are good down to about freezing. If it gets much colder than that, I can add another pair of microfleece tights under those without getting too bulky to pedal. They are designed for biking, and seem to handle the wear of pedaling just fine.
Upper body is less of a hassle, and just about any bike specific (because they have the longer back) rain jacket will work. Just layer underneath as much as you need, so don't buy one that's too tight.
My Novara upper is good for light to moderate rain. It's warm, windproof, and breathes fairly well. But if it really gets cold, or starts raining hard, I'll put the rain jacket over it. I always wear a base layer underneath the Novara, and just vary the layers depending on the temps. I prefer to layer, since there can be a significant difference between morning commute temps and the afternoon commute.