Needless to say a great post once again, thanks Kitt.
As for crowd surfing videos have you checked out
www.crazycrowdsurfers.com.
There's an 8 min long preview of the DVD this guy Sputterwell sells and the sample is mostly crowdsurfing
with a bit of flashing.
If you haven't seen it I strongly recommend having a look, the file is about 60 megs.