The crew from Bataleon have sum nice short movies on Vimeo and you should checkout their homepage and get this nice wallpaper.

Kalle Ohlson 2008 - 2009 Bataleon Snowboards from bataleon snowboards on Vimeo.
bataleon.com
Then there is this event comming up from Red Bull in NYC. I'm not really sure if it gets the "pushing the limits" or the "injury risk vs. mass-event" stamp. For me it looks like too much of the second option! See it by yourself: GO211, Transworld