I finally caught up some of my PDC-watching and really enjoyed this Herb Sutter talk
on C++0x lambdas. I'm well known to be a huge lambda fan. Herb made this talk enjoyable for me by bringing his personality to the table. He showed aspects of C++ that are not exactly elegant, and how using lambdas can make some much neater code possible. Sure, lambdas are "just" syntactic sugar, but they add up to a new way of thinking about writing applications in C++. Well worth watching.
One warning though - I generally download videos and watch them at 1.5 or double speed. I highly doubt you want to do that with this talk - it's dense!