Mount the ACT9K HD All Terrain Video Camera ($300) on your sports helmet to capture extreme video footage in high-def. The ACT9k can shoot in 1080p at 30 frames per second or 720 in 60 frames per second and features an ultra-wide 135-degree field of view, large LCD screen and a G-sensor for measuring G's for post stunt bragging rights. Even better, the ACT9k has a 65-feet depth rating so you won't miss out on wet and wild action.