Several people on AP have Go Pros. I know that Run Bosco runs with one a lot and has made some great tutorial videos (
recent one from November). She runs with a Hero 2.
I've got a Hero 3 Silver Edition with a chest mount. I've only worn it 3 times so far. The clarity of the raw video files is of fantastic quality. But you're going to have to do a lot of post-processing (image stabilization and compression) to get them into a result that's watchable and uploadable. I've been swamped over the past several weeks, so I haven't had a chance to do much with the raw files, other than speeding once race up 10x and watching myself fall down a lot in dark green.