Hog,
I live in the NW portion of the lower pennisula of Michigan (Traverse City).
My home stays around 75 year round, either by air cond, or heat. The closet itself, stays a bit cooler, but can be warmer. I beleive, ideally you would want your humidor around 70*F. Temperature is something I need to consider, but am more worried about the humidity regulation.
I'm going to check out that link posted as well. Hopefully I can figure something out, but I dont want it to be "jerry-rigged". I'd rather take my time to it right. Thanks
Bakery87