I believe there is a school in Marietta, check the Dojo Search engine on this site. If it is the one I am thinking of the instructor's last name is Kelly he is affiliated with Suenaka. I believe he teaches at the "Y".
If you are willing to drive you can check out the classes at www.atlantaaikido.com
in the Perimeter area (I-285 and I-400).
Thanks! I actually used to be a member of the Concourse gym but let it lapse...
So I already know where it is! LOL.