Thanks to slomoking on the BBTC listserve for sending along this link. I can't help but post it. It's from a 2004 checkpoint race for bicycle couriers in Manhattan and it is completely nuts. A lot of people I know are scared to drive in Manhattan. Well, this will probably get them hyperventilating just watching it.
My brother just ended his brief foray into the world of the bicycle courier service in Denver & Boulder. His most harrowing run-in was with a pedestrian on a paved bicycle path. As crazy as my brother is, I bet he doesn't have anything on these guys (thank God).