Yep, you're right, I have one daughter in Queens College and one in HS here on Long Island, the city and Long Island schedules are the same. I wonder how many other NY-ers will be down that week? Hopefully not enough to effect attendance dramatically as it did the last week of April this year.
How old are your girls? Mine are 14 (she'll be close to 15 by the time this trip arrives) and 20. They won't go to WDW for longer than 6 days at this point, they miss their friends and computers too much! So I take at least one or two trips per year without them to get enough of a WDW "Fix".
I hope the days you're waitlisted for come through for you and that your hubby gets more disneyfied as the trip approaches (I bet he will).
Mar'