Our first day at Disney was Friday 13 November and we left Thursday 19 November, was a great time to go.
Quite seriously we never really waited that long for anything, I think the longest we waited in a line was about 25 minutes (for Peter Pan LOL).
Most rides moved fast and we also used fastpasses alot (what a great invention!)
The first night we were there the fireworks show brought the crowds out, the place was packed BUT after the fireworks had finished the crowds dispersed.
Maybe also the fact that we had a few days there we felt we didn't have to rush to fit everything in??
So in summary i'd say
* use magical mornings when you can
* use fast passes
* give yourself a bit of time
* November is a great time to go, they're celebrating Christmas and nobody else is yet