I have stayed in Savannah, GA, which is just across the SC/GA border, and is only about 4 hours to WDW.
If you choose to stay there, do not stay at the Comfort Inn & Suites. The management is a mess!
I arrived there at Check in time, and was told I would have to wait another hour, as their entire housekeeping staff had just walked out on them. Additionally, check in took about half an hour. This all after driving 1200 miles and 21 hours straight through from Maine!
A few days later, I was checking on my credit card, and found out that they charged me twice. It apparantly was from the half hour check in process! So, on the way home from WDW, I had to stop there all over again, and have them fix it!
The property was not listed in AAA Tour Book, and I now use that as my Bible when I travel.
On a good note, there are plenty of other nice properties off exit 93 in Savannah that are listed in the AAA Tour Book.
But DO NOT stay at the Comfort Inn & Suites!