Krista,
Here is what I would do;
October 28 - Magic Kingdom
October 29 - Magic Kingdom / MNSSHP*
- Breakfast at Chef Mickey's (Contemporary Resort)
October 30 - Hollywood Studios
- Breakfast at 'Ohana (Polynesian Resort)
October 31 - Animal Kingdom
- Breakfast at Donald's Safari Breakfast at Tusker House (Animal Kingdom Park)
November 1 - Magic Kingdom / Downtown Disney
- Raglan Road or T-REX for dinner (both Downtown Disney)
November 2 - Epcot
- A World Showcase table service selection (Le Cellier, Rose and Crown, Chefs de France, etc.)
November 3 - Magic Kingdom
- Breakfast at Crystal Palace (Magic Kingdom)
Now I threw in a day at Hollywood Studios, and the Animal Kingdom, as i think that they have some appeal for kids in your age range. If you don't want to go to those at all, then continue to visit the Magic Kingdom on those days, but I think you will find the Playhouse Disney effect at the Studios and the zoo-styled appeal of Animal Kingdom to be ideally suited for them.
*As for
Mickey's Not-So-Scary Halloween Party, you are there on days where it can typically sell out, so make sure you make your ticket reservations as soon as possible!
Send along any follow-up questions, especially related to restaurant selection!
Have a magical vacation!