Air Fare is certainly very high for next Spring, I have heard from various travel "experts" that fares will come down a little, but not to what they were after 9/11.
I'm used to paying $168 from buffalo to mco, and I just booked 5 tickets for May on US Air and had to pay $225 each (INC. taxes...)
One consolation is that the flight times are awesome! I've decided that getting to the airport at 5am with 3 children is definetely not my idea of fun!!!
I wouldn't wait too long though, or you'll end up with inconvenient flight times.