Hi Orenda,
A December trip to WDW is just wonderful, and you should be there when the crowds are lighter!
For itinerary planning, I love www.touringplans.com -- it is a website brought to you by the fine folks behind the tour book
The Unofficial Guide to Walt Disney World. It offers many, many well-researched itineraries to make the most of your days at the parks and even what parks to avoid and what parks to visit on specific days. While it does have a small cost, I think it is well worth it.
If you have a chance, the resorts are amazing over the holidays. My favorites are the Grand Floridian, the Wilderness Lodge, and the Animal Kingdom Lodge -- great places to not only visit, but lots of yummy dining options!
If you'd rather go in a different direction with planning, please let us know. I'd gladly help (you can send me a question directly by clicking
here).
Thanks for visiting the Moms Panel!