Jersey Week 2006 is roughly Sun November 5, to Sun November 12th. The beginnig of that week is not bad at all crowd-wise, the Thurs-Fri-Sat will be quite busy, but not Easter size. But even so, "Jersey Week" is certainly do-able, though the week before or the week after are less busy.
"Jersey Week" 2006 will probably follow this pattern:
Sun Nov 5 to Tues Nov 7: Things will be somewhat busier than the week before, but nothing too bad at all.
Wed Nov 8 - things noticably get busier at Disney, but still not the worst ever seen in the history of WDW.
Thurs Nov 9 to Sat Nov 11 - things are rather busy but still not "Easter" level. Everything is perfectly do-able with normal trip planning - get to the parks early and do the big rides; make restaurant reservations in advance. There are plenty of other people besides Jerseyans there, as other kids have Veteran's Day off or have a long weekend, and Epcot has the Food/Wine festival.
Sun Nov 12 - crowds start to diminish.
Mon Nov 13 - crowds are more typical for November.
Hope this helps!