Santee, SC is located about an hour or so from the Georgia border on I-95. We stayed at Country Inn & suites a couple of years ago (now we drive straight through). Country Inn & Suites in Santee was clean and the staff was friendly. The room had a seperate bedroom with 2 queen size beds, the couch in the living room opens also. We payed less than $100 for the night and it included a free continental breakfast. Santee is about 7 or 8 hours from Disney, depends on traffic and how fast you drive.
I know you were asking about something closer to the border of Georgia but, I figured any suggestions might be a help.