YES!-
ANIME WEEKEND ATLANTA http://www.awa-con.com
The only anime convention in Georgia and one of the
Best in the SouthEast.
There is of course DragonCon
http://www.dragoncon.org ..... but anime is few there. It's more sci-fi/fantasy/goth/gaming/larp/comic/add-your-own-fetish-here/-type gathering.
However......
I just happen to show AMVs there (which now has it's own room).
So keep making them and sending them to anime conventions, because they'll wind up here as well.
-Cheers