Joe McNally just did, and I think is still doing his Kelby tour on "off camera Flash". They were in San Fran last month. Cost was $79 if and it was more than well worth it!!! 750 people attended. I sat right in the front(floor), and got to watch him do his thing for 7 hrs. The thing that I reveled in the most was this-he still makes mistakes, and admits to it, too. He said, and I quote" the minute you stop making mistakes, is the minute you relinquish being a photographer". Granted, when it comes to off camera flash, he knows what he is talking about, but watching him do his trial and error and watching his methods(and he explained everything, and you saw results immediately on 2 large projection screens), was by far one of the best lessons I have had to date, bar none!! And I know what you guys mean by it costs alot!! I've got 2 580EXll's, a 580EX, 2 30" shoot through umbrellas, 45" 5 way reflector, light stands, and an ste-2, and a lumiquest 80-20 for on camera. WOW. Check out his blog, too. Very informative.