Last month, there was a
free dining promo that would have fit into your 2012 dates (Nov 1-10). You will probably have to wait quite a while to see if any Nov 2012 discounts are released, so you can either book a great vacation with hopes that a discount will come out, or you can wait to book the vacation...I would think it would be okay to not book your vacation yet but you would have to check.
I just did a super quick price check on a Yacht Club garden view room for 2 adults, 2 kids (entered in ages 7 and 4...not sure if you have kids or if so their ages),
Disney Dining Plan, 10-day base tickets (no park hoppers)...which comes to $6401. With no dining plan, it is $5203. So you should be able to stay in a great resort no matter what.
You can choose to pay OOP for your meals if you want to stay in a deluxe resort, or you can consider a moderate resort like Coronado Springs which is the most deluxe of the Mods. The same trip in a standard CSR room with the dining plan would be under $5000 I'm sure. These figures are all assuming no discounts are released for your dates.
Definitely ask if you can wait to book, or if not, ask if they are willing to make changes to your trip if better offers come out, etc.
Personally, I would try to book the best resort with a dining plan that doesn't exceed $5000, and keep the prize money aside, or I would put a portion of the prize money toward a super fancy resort package if you are allowed to pay the difference.