First off I am in no way affiliated with Import Alliance.
From Their Site:
Spring Meet 2012 in Atlanta April 22nd
We will be holding our Spring ImportAlliance Meet for 2012 at Turner Field in Atlanta on April 22nd. Gates open at 9 a.m. Please follow us on facebook and twitter for up to the minute updates.
The atmosphere is awesome and friendly, because it is at its core a meet. Garage Zero out of Atlanta usually has old schools representing but not many Japanese Nos shows for this event...I'm trying to change that.
They have charged $5-$10 in the past.
Some pics from last year