I use gopro hero 3 black cameras, two of them, for side shots on my concert videos, whenever possible. At Ashkenaz, in Berkeley, i put up mounts on the poles a year ago and they're all still up. Used em the day after Xmas. Here's one of Abja and the Lionz of Kush at Ashkenaz: http://www.youtube.com/watch?v=62K6KmnxPfY
. The close ups are my old sony hdr hc9. I always get to use them at festivals, at clubs its hit and miss depending on friendliness. Moe's in Santa Cruz has a nice spot to stash a camera across from the band.