This looks pretty inciting. I've been a daily reader of David hobby's strobist website for over a year now and am currently reading Joe McNally's book. It's only $100 and located in Indy. For a conference, $100 isn't a bad price especially when they will have gift bags with over a $100 worth of gear in there, thanks to their sponsors.
Here's to hoping...http://www.theflashbus.com/