Dick Lane Velodrome has Wednesday night track racing in Atlanta.
See http://www.dicklanevelodrome.com/wednesday.htm
also http://www.dicklanevelodrome.com/results/2006_Results.htm

If any of you are interested in sharing a ride sometime in August,
let me know, whether to race or to watch. (It is perhaps the most
spectator friendly type of bike race.)

It is about 4 hours travel time, and they are Eastern time. Allowing
an hour for warmup, then, would need to depart Hsv NLT 1:30 CDT.

I can drive and we can split gas cost. I have pickup and can carry
my bike and at least 2 others.

You can see from the results link (above) the field sizes are not
huge but this could still be entertaining.

James