Hi Ellen,
While the 2 bedroom Deluxe Villas are beautiful and spacious, they are not the least expensive way to go (even when you consider eating some of your meals in the room). For example, a 2bd villa at Old Key West or Saratoga Springs Resort in April will run approximately $650 per night.
You would be better off renting two rooms at a moderate Resort such as Port Orleans French Quarter instead, for about $340 per night (total for 2 rooms). See
HERE. The rooms at POFQ will have a refrigerator. You can order a couple cases of bottled water from gardengrocer.com, along with bagels, pastries, etc and you can eat breakfast in your room in the morning.
The Disney Dining basic plan will save you a considerable amount of money as well. In fact, purchasing the Dining Plan for all 8 of you and reserving 2 rooms in a moderate Resort is still about $40 less per night than a 2 bedroom villa...and you'll have 2 meals and a snack covered per day!
Hope this helps and let me know if you have further questions!
Kaylene