My DDs dance school has done this twice in the past, in 2005 and 2008. We performed in Tomorrowland. We are going June 2012 and doing the parade like PP. Our trips all went thru World Class Vacations, they arranged everything and there was one contact person at the school (a parent) that coordinated all the families. It was a lot of work for that one person though (we did have 200 people the first time and about 125 the second time). It was not cheaper. I broke down the cost and we pretty much paid rack rate at the values and full price for park tickets. I am not sure if you were required to use that travel company (they do a lot of school trips according to their werbsite) but if you were accepted to dance, they should tell you that. And soon because March 2012 is not that far away. I would want to get my flights booked soon if that's how you are traveling, especially since that is spring break time. The dance workshop one PP mentioned was really fun, that was an extra cost but not much and well worth it according to the girls and teachers.