One of my favourite parts of downtown Atlanta is Centennial Olympic Park. It doesn't supply any entertainment of its own other than providing enough well-groomed grass to support an inter-team Ultimate Frisbee tournament during lunches. It has also been host to summer concert series for the past few years, so if we participants could arrange it, they would be quite receptive to a concert or two while everyone"s here. As to other concerts, Atlanta is home to
The Tabernacle which will have something fun going on whenever nationals are held.
Not entertainment, but the competition would probably be in the
Georgia World Congress Center - which is freaking huge - so everything would be in one building and make things a bit easier during competition. (First the sports olympics, now the nerd olympics

.)