The title says it all :)
I'll be there. Haven't seen too many people mention it on here yet so not sure about any training groups (informal).
I am also doing it -- I was wondering if anyone is interested in sharing a ride or hotel. I am driving my daughter to Indy on the way to spend a week with her grandparents. I will be coming back Monday pretty early in the day as I have to work Tuesday.
Make sure you indicate that you are doing the race on the race section of the website: http://www.dctriclub.org/index.cfm?fuseaction=Race.view&id=E9904381-E7A9-68BF-EF5036A135FE576B
Yes I will be doing Louisville this year :)
Also I am planning on doing a training weekend down there July 28th weekend if anyone is interested in going with.