I took a lesson from a local non-TGM pro. He didn't tell/show me anything I couldn't read in Golf Digest for a lot cheaper, and I already knew most of that info was junk/incomplete. I Read some of David Laville's (sp?) posts on various newsgroups, which got me to buy the book, which led me to the TGM forums, which led me to the much better forums on Brian Manzella's, Chuck's, and now Lynn's websites.
The small victories, improvements in ballstriking, and knowing that one of these days I'm going to try to find time to schedule a visit with Lynn keep me moving along (plodding at the moment).