Hi, Escarabaja! :wave:
The Department of Special Activies at Disney offers tour guides to guests at the cost of $125/hour. The cast members used are specially (and intensively) trained Guest Relations cast members who are experts on the geography and strategies of the parks. The tour guide is basically at your service to do just about anything while you have him/her. They will drive you to and fro, pick you up and drop you off, and basically take you to any location on Disney property accessible to regular guests.
What they do NOT do is give you "back door entrances" like a post above stated. They sometimes, if you have a good guide, will be collecting Fastpasses for you prior to your arrival at a certain park, but there is absolutely no authority to get you on a ride any quicker than anyone else.
With that said, VIP Tour Guides for "high profile" guests do use exclusively backstage routes for their parties because of the fact the guest could not possibly enjoy themselves on stage. You may think this is cool, but think about it - a good part of Disney is the visuals and the "show" that is put on, and celebrities have to sacrifice all that just because of who they are.
These tours are fantastic and the tour guides assigned to you go through a rigorous interview and selection process - it is
very difficult to get in to. You will be touring with the same guides given to the celebrities - so you know these are Disney's best-of-the-best. You can go to
http://disneyworld.disney.go.com/wdw/parks/tourDetail?id=AKVIPServicesTourPage for call Disney VIP Tour Services at (407)-560-4033.
If you can't afford the $125 but still want to experience this, to an extent, consider the Keys to the Kingdom, Undiscovered Future Wourld, or Around the World on a Segway tours offered in the parks. These tours offer the personalized attention for at least a brief period of time.
Hopefully this helps you a bit.
