Just saw this video and and was blown away, these guys are like meat missiles. It may have been posted already in another thread but what hell, I'm willing to take that risk because that's just the kind of wide eyed thrill seeking junky I am, well, maybe not as much as these guys.
If your into ultra high speed crop dusting and incredible scenery give this an optic, if your've seen better please share, doesn't even have to be as good. This vid seems to get better and better the whole way through, I personally like the angles at 1:48 and 3:20.

www.dump.com/2010/12/25/wingsuit-base-jumping-at-its-finest-video/