My good friend Chris Marquardt has recently been posting episodes from the Photo Day that aired on Twit Live in 2009. I was privileged to be part of the day and Chris recently posted part of my contribution. You can find the episode on the Tips From The Top Floor website as tfttf429 - Photoday 2009 Video - Post Processing with John Arnold - Part 1 of 4. There's a link on the page there to download the MP4 version, which is much higher quality than the embedded YouTube show. I recommend viewing that one.