We went last year from the 2nd Thursday to the 3rd Thursday of November and while it wasn't really crowded, the 2nd week was definitely more crowded than the 3rd week. YMMV.
Jersey week will be Nov. 7 - 11 this year (the kids in that state get the week or partial week off of school) and 11/11/11 is veteran's day, so I am expecting that week to be busy, but how busy is hard to gauge. Are there any crowd predictors for US like the Unofficial Guide to Walt Disney World???
None of the Orlando public school systems (Orange, Osceola and Seminole Counties) are closed that day...according to their calendars. We didn't get out of school on election day when I was a kid in Virginia.
Crowds during Nov are generally Very Low. Jersey week has a spike in attendance, as does Thanksgiving Week. For Thanksgiving, Sun-Wed are slow, Thurs (Turkey Day) is moderate. Fri/Sat = supercrazybusy.