I just bought the Camrig Strut Mount a couple of weeks ago. It works great! It is a little pricey, but then again it probably took several iterations for the guy who made this to get it right.
It is pretty hard to make a video using just one camera. I would suggest at least three. I know that sounds crazy, who has the money for three go pros, but without a aerial, board,and chase boat perspective, the video will always look pretty amateurish. Head-mount is ok, but it gets old pretty quickly in videos.
Here is a sample video I took with the Camrig Strut mount. I ran it through iMovie and put some stabilization on it, but that is all. Yeah, I know, the rider is lame (me) but you can get an idea of what the shots look like on a GoPro Hero2 at 1080p wide: