I'm no expert but our immediate family has visited Disneyworld in Orlando twice. I got the most information from this board, http://www.disboards.com/
. There are lots of books our there too. The most important thing is to have a plan. Without it, your heads will be spinning. My DD25 still loves the place, Disneymooned with her DH there, and they plan to return again. I always say that there is something for everyone at Disney.