Lake Varner in Covington, GA or Lake Lanier in Cumming, GA.
Varner is PACKED full of fish over 8. One of our members here on BR, Randall, caught a 15lber out of Varner last year. It's an electric motor only lake, but the fish will be spawning about the time your trip is set to take place. Varner is pretty clear and if your a good sight fisherman, it's the place to go. Many of the 1-day jonboat tournaments out there are won with 25-35lbs/5 fish
Lanier is still very low, but the magnum spotted bass sure don't care. They are slaying big fish on Lanier right now and that will continue all year. The water is super clear and since almost all of the 72 ramps are closed, the pressure has been low.
If you choose to go to Varner, email Randall Kirkpatrick with Fish Atlanta Guide Services. He has awesome prices and will teach you more in a day than you have learned your whole life.
If you go to Lanier, contact Ryan Coleman. He is the most popular guide on the lake and to add to his credentials, he won the BASS Invitational on Lanier in 2007. The dude knows his stuff.
Good luck and have fun!