I don't want to rain on anyone's parade, but.....make sure you're prepared for warm and cold weather. We were at WDW in late January 2001 and FROZE! We were glad we had our heavy coats, gloves and hats from home (we live in Pennsylvania). Even so, we could not enjoy WDW since so much is outside and it was freezing. We were there during a record cold snap.
We did enjoy some unorthodox activities though. We were staying at Dixie Landings (now part of Port Orleans) with my BIL, SIL and their family. We went to the food court, snagged a large round table in the corner with large windows, used our refillable mugs for tons of hot cocoa, ate pizza and played cards for the evening while sending the kids to the arcade.
I really felt bad for all the cast members. They truly are not used to 6 days of weather that cold and, although they tried to be gracious, it was apparent that they were VERY uncomfortable.
We made the most of it but I'm glad we were prepared with cold weather gear!