If you want to sit, but do not want to "camp," the 2nd show is your deal. If anyone wants more details on how to do this easily, post and I'll go into further detail.
Not to scare you but we had waited for a very long time and sat in the second row behind several families who were right at the railing and when the show started everyone stood up. Also everyone crowded together which was rather uncomfortable. This was in June of 08.