Free Richard Dawkins! (That's free as in lecture, not free as in spring from jail.) Each year in honor of Harvey David Preisler, a lecture is given and this year's will be delivered by Richard Dawkins on May 3 @ 9am at The New York Academy of Sciences.
The lecture is entitled "The Purpose of Purpose," and Professor Dawkins will make himself available for a question/answer period afterward. If you are in the New York City area (or can be on Saturday), I urge you to attend.
As noted the lecture is free; all you need to do is RSVP in the comments of this thread.
Update: The event filled up quickly...only the first 25 RSVPs will be able to attend.