If you’re going to LSRC in Austin, Texas (Aug 10 and 11), then
I recommend the training session on Thursday, August 9!
See http://lonestarrubyconf.com
If you’re going, and you haven’t picked a training session, then
you should consider mine. 
See Ruby Derailed: Tricks, Idioms, and Experiments in Application Development - “Ruby Derailed:
Tricks, Idioms, and and Experiments in Application Development.”
Cheers,
Hal F.