I remember a trip a couple years ago, where I think it rained virtually all WEEK! We went to the parks anyways, which I'd suggest, at least all except AK. That park wasn't really set up for rainy day touring, there's too much to see outside. If you really want to sit inside for a shile, get a table upstairs in Columbia Harbour House in MK, then watch all the people who aren't dressed for the rain run frantically, usually running into each other because they're looking down to keep the rain out of their face-it's a funny sight! Then listen to children who complain "I haven't seen Mickey and Minnie all day!" They expect to see the characters in the rain. If you've got little ones who want to see characters, try the building in Town Square by Tony's. The only disadvantage with Epcot is that it's so spread out, you can get pretty wet going from building to building. But have fun anyways!