I have posted so many links to Lightroom tutorials here, if you watched half of them, you would be giving Matt Kloskowski a run for the money in the expert department.
Well, wait there's more. John Nack just recently posted several other articles on his blog. Here is the link right here. Check out my article entitled, "Another Peek Into My Friday Program - LightRoom for all my links. you will find about a gazillion of them.
By the way, don't forget to check out Matt's new book on Photoshop Layers right here - it's a killer!! Hey gang I'm off - another busy studio day today - so I'll see everyone tomorrow for a peek back in time at some of my earliest photographic images. See you then, --David