We're from Alabama, but were in Atlanta last weekend and went to see the Mickey's. It was our first time at Underground Atlanta and we weren't really sure how to get there. We saw a policewoman walking down the street and rolled down the window and asked her. She gave great directions and it was easy to find and park close to it. You shouldn't have any problems. One thing that confused me, though, was that I thought I read on here that there were 25 Mickey statues, but there were only 15. I kept looking, saying, "There have to be more!" until we finally saw a sign that said there were 15. We got pictures with all of them - they were really cute. (The "Back to School" one was my favorite because I'm a teacher!) Have fun!
Oh, yes, I second the suggestions for the World of Coca Cola museum and the Varsity!