Absolutely agree! We did the Disney parks the most in October and with a bit of planning it was fine. We actually went in MK for a few hours when the halloween party was on as it was quiet with everyone leaving.
It did get cooler the 2nd week we were there (flew out on the 8th) but normally it is lovely and warm. My parents came out with us in October 2010 and they found it too hot for them on some days.
We are going out again next from 29th Sept for 3 weeks
ps dixonstour, just finished reading your TR on another forum and loved it.