So sorry we didn't answer you for so long... Don't know how I missed your post. Sorry!

Eleven50 is the coolest club in Atlanta. They are pretty strict about underage, though, so I wouldn't count on going into many great clubs at age 17.

There are, however, some great places that serve food and drinks - no real dancing, but VERY cool places to hang out. The newest is Shout at Colony Square. Very hot right now.

I'm going to ask my friend, Matt to post his suggestions asap for you.
It takes about 5 hours to get to Atlanta... stick to 231, then 431 to 85.
Look for more, later.