My NSX is relatively new to me, and this will be my first winter with it. However, I had an RX7 prior that I stored for several winters. In the entire time that I owned it, I never really knew whether what I did was right, but it always seemed logical to try to drive it for at least a short distance every couple of weeks. When there was too much snow/salt/moisture on the roads, I'd drive it around (and around, and around) a circular section of my driveway for 10-15 minutes. (I'm sure this confirmed my neighbors' suspicion of my insanity.) At any rate, not driving a car for extended periods is said to lead to brake caliper corrosion. Running the air conditioner periodically (even on cold winter days) supposedly helps lubricate AC compressor seals and extend the compressor's life. My experience in dealing with the battery is as follows: disconnect it during storage intervals. It should hold its charge without the current demands from radio memory, clock, etc. Trying to leave the battery connected during the winter and periodically charge it up seemed to pretty reliably wreck batteries for me.
And, for whatever it's worth, the NSX owner's manual does recommend running the car periodically during storage (don't have the manual in front of me now, and can't remember the exact wording).
Apologies for the lengthy message.