Here's a few movies from my camera (yeah, the quality is questionable... deal with it!) from ziplining in Kaua'i. All of these are QuickTime movies from ~15 - 25MB each:
Carrie ziplining #1
Carrie ziplining #2
Me ziplining. This on was taken from my perspective as I went down the line... not for those who may get motion sickness. That means you, Steph.
I can't wait to try this again. With a high-def video camera... ;-)