Disney was a blast! I've been there twice. We won dream fastpasses in October when we went.

Three may be a little young, but since you're relatively local, it may work. Really little kids can't go on any of the really COOL rides, but there are plenty of little kids' rides!

My fave T shirt was one a little kid had on. There was a picture of Yoda in front of a ride gate, which said "You must be this tall." The caption was his classic quote, "Judge me by my size will you?" I wish they had that in adult sizes!