Hmmm, I mean I was a barefoot, woods-roaming, wild child then, so I didn't get to do TOO much exploring. But, Stone Mountain and Kennesaw Mountain are both rad. World of Coca-Cola is cool. There are some awesome museums as well. The city is fun during the day time, but I'd be careful at night. :p Also, I'd go during fall. It's BEAUTIFUL!
I used to live in Woodstock, which back then, was a super small town, but now it's all developed :(
BTW - I will work on something hopefully before I leave the office today.