Full Size Van rental

[irbya]

I live near Raleigh NC and am planning a trip to WDW in August. My question/problem is that we are traveling with my parents. There are 4 of us plus my parents. So, I'm looking to rent one vehicle to travel down on. We have to carry a playpen for my daughter to sleep in plus lots of other items. Does anyone rent a full size van and are there any good deals?

Thanks,
Annette