This GoPro HERO3+ Silver Edition Helmet Cam drops from $299.99 to $239.99 plus free shipping at REI.com when you use coupon code 126TAKE20 during checkout. This was the lowest price we found by $50 for this version of this very popular action camera, which was recently and heavily featured in the 2014 Winter Olympic Games. It's known for its high durability, shoots 1080p HD video and is wearable, gear-mountable and waterproof to 131 feet. It also has built-in WiFi for transferring images and controlling it remotely with a smart phone app. It ships with a mount and waterproof housing. Sales tax is charged in most states.