It's our first trip to Disney and we're going the 3rd week as well. Last year, I tried to figure out the BEST time to go since we were flexible, but now I'm kind of worried too. I didn't even THINK about the 50th celebration plus I also heard that week is when NY schools have spring break (someone please correct me if I'm wrong). I think it's definitely one of the best weeks to go in the Spring but I doubt it will be like fall attendance or early spring. Have fun!Just expect crowds like I am and hope for the best.