I'm pretty much a newbie myself, but a fellow Finger Laker. FWIW, here's what we did: insulated the chicken house on all sides, the floor, doors and the ceiling, and covered all that with 7/16 plywood. We have double pane windows. We'll have two heat lamps, plenty of litter and straw, and we'll be covering the chicken doors with 20 gauge plastic cut into strips, so when the doors are open during the day, the drafts will be kept to a minimum (hopefully). On really ugly days we we'll keep everyone inside with the doors closed.
Hopefully that will keep and 8x6 house warm enough to not worry about frozen water. I had planned on throwing straw down outside to help protect the birds feet and to keep mud under control. I also heard that vaseline should be rubbed on combs and wattles to help prevent frostbite, so I'll do that too.
Short of putting them in little chicken parkas and booties (don't laugh, you should see my dogs out in the snow), I can't think of much else...