I realize you've already ordered your books but I had to put my two cents in for one to consider. It is Remembering Walt: A Memory Of Walt Disney by Howard E. Green.
Howard is a friend of mine and has been with Disney Studios Animation Division for I believe more than 20 years and is currently vice president for publicity. With his history with the company and access to the Nine Old Men and others it was a great idea to put together a book of remembrances from people who actually knew Walt and worked with him.
I think the essence of Disney is perfectly captured very well in this book and is an important addition to my library.
I'm reading this book on and on now, I love the stories. Some I have read before in an american original and how to be like walt, but they must be great stories if they make three books.
"He gets around you know he knows all the pretty girls." ~ Walt Disney
I have Walt Disney Imagineering and I agree it is a great book
The mouse tales books just came in from B&N! Due to the fact of B&N not having many books about Disney last weekend, I picked up Disney War. So far, not the greatest of books IMO.
Once Upon An American Dream: The Story of EURO Disneyland by Andrew Lainsbury
The history of the development of Euro Disney up through about 1999. May be seemed a bit dull to those that do not enjoy nonfiction but should captivate a Disney park fan.
The Pirates and the Mouse: Disney's War Against the Counter Culture by Bob Levin
The story of Dan O'Neil, a hippie cartoonist who started a rather explict comic book that used the Disney characters. A good stroy that is told in a well written way.
The Gospel According to Disney: Faith, Trust, and Pixie Dust by Mark Pinsky
Looks at the values that are presented in a good number of the Disney animated features. Pinsky sort of confused me a bit with his take but interesting none the less.
And, of course, DisneyWar: The Battle for the Magic Kingdom. I'm about 3/5 of the way through and it is very good so far.
I have not read this but the reviews have been very good and the library is putting a reserve on it for me. Lots of information on the planning stages and building of DL and supposedly a "must read" for anyone considering a career in theme parks.
Walt's Revolution!: By The Numbers