Fin, you might want to check out off site condos, especially if you have a group of people.
My whole family got together this past March for 10 days (my sister wanted to do Disneyworld for her 50th birthday.....fun!). We stayed at a condo in Kissimmee the whole time, and I think it cost ~$1200. That included having someone come in after we left and clean up/wash linen & towels/etc.
The advantage to that is that you can do breakfast & dinner at the condo, and save a ton of money doing so. We were maybe a 10 minute drive to any of the parks, and parking was easy (us kids took turns paying for parking, so it wasn't bad). The condo was clean and comfortable, and had 3 bedrooms/2 bathrooms, full kitchen & dining room, and living room.
So far as the parks go, I would definitely recommend that you get a park hopper option for your pass. It's an extra $50, and worth every penny, since it lets you go to any of the parks on any individual day, as often as you want, for the whole period of your pass. Otherwise, you go to one of the theme parks, you're stuck at that one all day. With park hopper, you can go to Epcot in the morning, go over to Magic Kingdom for the parade, then catch Animal Kingdom park in the afternoon, if you want. Definitely a good feature! :awe: