You could look at the chart of seminars that David Allen will be putting on. He is flamboyant, entertaining, covered in teflon and the guru for all this stuff, so you'd find it very productive and a good place to meet other GTD acolytes. To check this out, go to www.davidco.com/seminars. Just be warned that the with the inspiration from one of his presentations, you're likely to try to undertake every project you could possibly consider. I think he should spend 15 minutes at the beginning and at the end reminding people how to say NO, but of course, then it wouldn't be any fun. It would be like going to a high school kegger with one of your parents.