I've just bought a Dogcam (yes really) which is an 80mm long, 22mm diameter tube with a 135 degree wide angle lens. It'll record at 30 fps and 720i for 1.5 to 2 hours. It has an array of different brackets and mountings available. I just got it out of the box today and will be trying it out in my mate's boat and on the car until I can get flying the weekend after next. I'll let you know how it goes.