Alan I have heard good reports and bad on go pro (it's to pricey mostly and need for a case to make them waterproof which costs even more money oh and mounting brackets etc which cost even more money !!!! ) also amazon has mixed revies on go pros in terms of the firmware not being as good as the earlier models
Here is an alternative I was considering...
I have read good reports on this
https://www.youtube.com/watch?v=07wZiNELfRQ
its the contour roam 2 much cheaper about half the price of a go pro and good reviews
forget the internet rumours that raom has gone out of business ..that was a while ago and they have been taken over but you will have to do your own research on that.
hope that helps
Radar