Just to add on to Caskbill's point #3-Make sure you check the forcast for Orlando before you go. We were there 12/31/2000, when it was in the 20's at 7:00 am when we were waiting for the bus. Since we were from Illinois, and I had checked the forcast we had winter coats, hats, etc, and needed them all day. Even though the sun came out, it still didn't get above 40 that day I don't think. I can't tell you how many people we saw in sweatshirts or light jackets, and one woman at 10:00 pm waiting for the fireworks in capri pants and a light jacket-they had to be miserable. (She finally either left or went somewhere inside.) While you can buy sweatshirts and gloves at Disney, they aren't really prepared with heavy winter wear. The day before at MGM the clerks couldnt' keep the sweatshirts on the shelves-there were lines of people buying. So-my advice-even though its Florida, it can get cold--PLAN AHEAD. We're going back this NYE, hoping to not freeze our you-know-whats off.
PS-We had a great time in spite of the weather, and crowds. We spent all day at MK, and rode many things multiple times by using FP. We also had PS's for all three meals, and were VERY happy, since they were turning away people. Gayle