FYI for anyone arriving at ATL Hartsfield for NAMS the tube/metro/mass transit system whatever you want to call it MARTA is dirt cheap $2.50, takes about 30-45 mins from the airport to Brookhaven (15 stops) on the Northbound on GOLD line, the complimentary hotel shuttle will pick you up from there (about 5 miles). Taxi runs about $45 from airport to hotel.

I am thinking to use MARTA as the trains run every 15 mins from Hartsfield (which is also the beginning/end of the line so should be pretty easy on and off) and I'll bet they're faster than driving through traffic.

See you there.
http://www.itsmarta.com/NE-w.aspx