Look at one of the Vacation Clubs
I would see if you can get into on of the Vacation Club Properties.
Most have at least a one-bedroom (most are 2bedroom) and will have a full kitchen.
Much easier to be able to keep all the kids food/snack etc.. and not have to deal with moving the family to breakfast.
They have a great kid pool at Harbor Lakes
Check out Marriott site, but also might check one of the time-share rental boards (tug2.net etc...) to see if you can get a deal.