The Nikon D3s is finally official. Nikon updated a few items in its flagship DSLR including the addition of a 720p video mode. Camera nerds are still curious where their 1080p mode is, but these demo videos show that the 720p video is at least YouTube (or rather VodPod) quality. One more after the jump. Grays of Westminster are accepting pre-orders for this amazing new camera http://ow.ly/ulhv .