Sam A.
Yelp
Callanwolde is awesome, and is probably one of the best-kept secrets in Atlanta (well, OK, Decatur). It's a community arts center, and they offer all kinds of art classes that are open to everyone. The class fees are reasonable (I've taken several photography courses there and they were all under $200 for 8 weeks), and you meet awesome people.
Here's my personal experience:
I took a film photography course back in the day in high school, and I was interested in trying it out again. I was looking for somewhere in Atlanta that I could take a film photography class, but all I could find were digital photography classes. Finally, a friend told me about Callanwolde. I had never heard of it before, so I checked it out and found that it had just what I was looking for.
For under $200, I took an eight-week photography & dark room course at Callanwolde taught. There were just over 10 people in the class, and we had access six days a week to Callanwolde's dark room. The class met on Wednesdays from 6 to 9 p.m., and the class allowed students at different levels to set their own goals and work on their own projects, although there were also class-wide assignments.
I learned a lot in the class, including dark room technique and photography technique. I also met a ton of cool people through Callanwolde. In fact, I enjoyed the class so much that I took it three times while living in Atlanta. Now that I live in Los Angeles, Callanwolde is one of the things I miss the most.
I loved the photography course, but they have painting, sculpture, weaving, carving, dancing, and all sorts of things I'm leaving out. The catalog is on the website: http://www.callanwolde.org/ Check it out.