Oh M., I am so excited for you! My husband & I took our daughter almost two years ago and we still talk about it like we just got back. We did all of our travel arrangements with Disney in a package with one of their cheaper resorts and did the meal plan....best thing we ever did. It was so nice after a long day to hop on one of the shuttles back to the resort. The Meal plan saved us a TON of money! If you don't do anything else I would definitely recommend you splurging for the meal plan because I'm sure it will be cheaper than paying for the food at the resort. We ate at some very nice places that if we hadn't done the meal plan we could never had afforded.
Luckily, this year we might go back for FREE from my job...I sell Tupperware and I'm very close to earning my free trip!
Good Luck in your planning!