Big fenders for sure. If you get a lot of ice on the roads it might be worth it to get a front tire with studs. I ride in the path that cars take and on the plowed trails around here so I don't really have a need for studded tires. I ride 700x32 year round without too much trouble... gotta take it easy on corners and so on. If you're wearing big winter boots you might find BMX pedals more grippy. I like them a lot myself in the winter since I use sorels and the roads can get slushy here. I'd take your seatpost out and grease it too, maybe the BB & pedal threads if you've got the tools and stuff.