Re: What kind of camera...
I've been toying with this myself.
I've borrowed a friends new gopro hero (black?), the lack of zoom function makes it near useless IMO.
I'm probably going to just buy a normal digital video camera in the $200 range, so I can use it at kids sporting events as well.
Changable battery packs, or auxillary battery hookups (carrying larger capactity batteries on your belt) seem to be the answer to the battery life problem.
The last time I was at bestbuy they had a nice setup/selection of "action cameras" such as the gopro, as well as other mfg's. IIRC some actually had a zoom function.
In the meantime, I've been using my smartphone...
SSgt USAF 2004-2010
If you want peace, prepare for war.