I know that those "Go Pro" cameras are really popular with the adrenalin junky sports guys, like base jumpers, motocross guys, etc. They come with all sorts of mounting brackets that could go on a bow, on a helmet, or your arm. I think they go for around $300. There's a new "Hero 3" out now, so maybe the older ones will come down in price, who knows. Just google them and check em out.