I would definately recommend the Beauty and the Beast DVD as it has an added song, Human Again from the broadway show, added in, and the animation matches and the song fits well with the movie.
And there IS a special edition Alice in Wonderland, you must have missed it's release...Came out two years ago I think.
I won't assume Disney's going to make a perfect 2D animated film just cause they're making one again. The last one they made was Home on the Range which, I'm sorry, looked so awful I refuse to watch it. I'm just hopeful and crossing my fingers that Princess and the Frog is so very good and does well that Disney becomes interested in doing more 2D films again, much like The Little Mermaid made them strong again for about a decade.
And I think Pixar has been the only company to show real "passion" in their 3D animation. I've seen other companies tries at 3D that are ok, but they're not classics like Disney 2D films or Pixar 3D.
And speaking of other companies, people should really watch Don Bluth films from the 80's. He worked for Disney at one time and then left to do classics on his own like Secret of Nimh, An American Tail, and All Dogs Go To Heaven.