Hi Scott!
Congratulations on planning a family vacation in December! The Walt Disney World Resort looks beautiful at that time of year, the Christmas decorations are stunning.
If you stay on-property at Walt Disney World, you have the choice of over 20 different resort hotels to choose from, in various categories - deluxe, moderate or value. There is free transport from every resort to all the theme parks, water parks, Downtown Disney, and to the other resorts. Depending on which resort you choose, the type of transport offered will vary. There is always a bus service, and there may also be a boat and/or monorail option too.
Here are the details of the
Disney resorts, which also includes details about Disney transport.
Once you have made your decision on where to stay, please come back and ask more questions specific to that resort, if you wish.
Have a magical vacation!