On the subject of lectures, if you haven't seen Robert Lustig's lecture on Sugar: the Bitter Truth, stop what you are doing and find 90 minutes to watch it. Fantastic lecture. Amazing how good his lecture is with such pathetic slides. It's not about the deck.
The New York Times is running an excellent profile of the lecture (Really? Sunday New York Times Magazine profile piece on a lecture?) this Sunday. Gary Taubes wrote the profile, he is the same author who wrote the best article I ever read on the science and politics of the Atkins diet back in 2002.
Take the time to check out the lecture and the profile.