The Bike: Electra Townie 21
Pedal forward design keeps your feet close to the ground in case of trouble. With lots of ice and snow trouble abounds. My favorite trick for sheets of ice is to place both feet on the ground and use the throttle to push slowly over it. No turning! I have a better success rate with this than trying to walk across the same ice.
The Power: Front Hub 36V Wilderness Energy with NiMH battery pack
A good amount of torque to get through deep snow. Deep snow provides a surprising amount of rolling resistance. A front hub motor gives the same advantage as front-wheel drive car. The wheel may slide a little, but it tends to pull itself back into line. I have a rear-motor bike to and I can attest the effect is exactly opposite. Rear-motor bikes slide out fast and often.
Googles: Good to keep the snow, the cold, and the crap thrown up by cars out of my eyes.
Bunny Suit: A blaze orange, two-piece hunting suit from Cabelas. I only wear both pieces when the temperature gets below 10F or so. The whole thing is highly visible, water proof, and warm as all get out.
Gloves: Weather-proof outer mitten with synthetic glove inside. The combo is pretty warm, and the inner glove lets me fiddle with locks and such without touching them. My throttle thumb still gets a little frozen if I'm not pedalling hard.
Cuff Keepers: Homemade out of denim, reflective tape, and velcro. I could not find anything over the counter to keep my cuffs out of the chain. A large rubber band would also work, but where's the fun in that?
Helmet: Because I'm not suicidal.