The Crossroads of the Aether
you can rent room's from private homes in the area my friends did that last year ,most of the time just a short drive to the con check creig list or whatever its called
Also try to look at hotels out toward Doraville. You can always take the MARTA train into the Peachtree station.
I'd have to say that I am not aware of any really good campgrounds in the area that is going to service the con very well at all. It really depends on whether you have an RV or not, a vehicle you can move back and forth to con, and you're probably looking at an hour drive one way every day in order to do that. Con is in down town Atlanta, so it is not really convenient to camping amenities, and you would certainly not want to camp in the vacinity, the down town Atlanta wild life can be a tad bit dangerous, as in any large city.
LOL! I was aware that anyplace we could set up a tent would be a bit of a commute, but since we will be driving 6-7 hours to get there, I had figured that even an hour drive was an improvement. I've watched enough episodes of The Walking Dead to know that Atlanta can be a frightening place.
Anyway, the problem is solved and we have a room reserved.