Hi Trilby! How exciting to be planning your family's Disney vacation! There are indeed several choices that you can choose from. Be sure to check out the
Disney website page that lists room options for five or more guests. The family suites in the All Star Music Resort and the new
Art of Animation Resort (opening May 2012) sleep up to six people, and provide a kitchenette and two bathrooms.
My next recommendation would be the Cabins at
Fort Wilderness Resort. Your family will enjoy their own cabin, with full kitchen and a deck that comes with a gas barbeque! Staying at Fort Wilderness is an amazing experience, and there is so much for your whole family to enjoy!
You can also opt to book two value rooms, and request them to be adjoining. There is a risk that adjoining rooms won't be available though, so I would recommend the family suite. Plus you will enjoy the cpnvenience of the kitchenette.
Hope this helps Trilby! Please write back with any other questions!