What I always advise my clients to do is book what you can afford without discounts as soon as you have firm travel dates. Discounts are not guaranteed and even if one does come out there is no guarantee that you can get it when and where you want it.
If you would like to send me your details (travel dates, party size, kids ages, tickets, resort choice, etc) I would be more than happy to put some numbers together for you. Also when you book with Kingdom Konsultants we keep track of all of Disney's promotions and if one comes out that you qualify for we will automatically rebook you at the new rate.