Cheap 3-4 night stay & play package in the Smoky Mountains?

My husband and our 2 children (ages 2 & 6) would like to find a cheap vacation package for the smoky mountains this summer. We have done the "time share" thing, and don't want to spend half of a day in a tour. We only need a hotel to sleep, so it doesn't have to be extravagant, just clean and safe. Any suggestions from "locals" would be greatly appreciated!