Sorry for coming in late on this; I haven't been around the boards recently.
Just wanted to say that I have an SD and have been to Disney with her. It's really not much different than going anywhere else - the only difference is there are only a few certain potty spots you can use. But I have the PassPorter special needs book (a new edition is coming out soon and just opened for pre-order on their site - the new one is called "Open Mouse" and once you pre-order it, you get a .PDF copy to download so you can even use it before it starts shipping in September) and that tells you where all the potty spots are. They have a great map that tells you how much time it takes to walk from place to place, too. I took the map (the colored version from their regular book) and placed stickers on all the potty spots and then laminated the map. I did this for each park. It worked great!
If you want, Zuke's makes energy treats for dogs. They're all-natural. I got my girl the peanut butter ones (but they have other kinds, too). I don't normally feed her in public, due to service dog etiquette and all, but throughout the day sometimes I'd slip her an energy treat.
My dog loved Disney. Her favorite ride was Pirates - I think 'cause now Captain Jack is in it!

Yup, he is EVERY girl's dream! Haha!
We had no access problems. We didn't have too many problems with the general public, either. Just be warned that ppl may take your dog's photo, with or without asking you first!
We went in May, so didn't have to deal with burning hot pavement. I did put boots on her, but she hates things on her feet and "complains" about it by sitting any chance she gets (naughty girl!), so I eventually took them off her for my safety's sake as well as sanity's sake (it was driving me crazy!). One CM we came across inside a ride commended me big-time for having boots on her, though. He must've been a big animal lover!
So, anyway, if you haven't travelled with your dog before, then there will be some new things to you. But going to Disney is like going anywhere else ... except it is more fun, of course!
