my family and i usually go to disney in early nov. which is great as far as weather and crowds. this year we have to attend a wedding in aug in fl. so we are making a stop at disney(of course). we have never gone in the summer. i am hearing HORROR stories. how bad is it? not the weather, we can tolerate the heat, i'm more concerned with the crowds. also, can anyone give me an estimated time(s) that Fantasmic, Illuminations and the mk fireworks happen being as i am traveling with little ones. in the fall the excitement is over by 9:30 or earlier. i just don't want to regret going in the summer. 
