The last 2 times I've been to WDW has been at the end of August (2004 & 2006). The crowds are not that bad, school down south return earlier than in New York. Wait times at MK, Disney Studio are about 20-30 minutes. AK about 30 minutes and Epcot about the same. The heat is the issue. It is very hot and possible showers everyday. Please drink plenty of water and take afternoon breaks. All & all if planned right August is not bad. Enjoy!!!