I agree that the "lull" between Thanksgiving and Christmas is an excellent time to go. Avoid the holidays themselves (since you are obviously not constrained by school holiday dates!)

My best advice is to get my favorite book on the subject: the Unoffical Guide to Walt Disney World. It covers every possible angle on when to go, where to stay, what to see in what order, lodging ratings, etc.

Here's a link at Amazon.com, perhaps you can find it cheaper elsewhere:
http://www.amazon.com/exec/obidos/AS...944173-0672816