I own a Nikon D80 & D90 and have watched the Nikon digitutor video and have purchased the Magic Lantern DVD's for both and also watched them several times. It has been some time since I searched for YouTube videos on my cameras but today I took a look again to see what is available. WOW there is a ton of them out there that are very good and informative, so if you haven't ever looked or looked lately do yourself a favor and search YouTube for videos on your camera. No matter how much you know about your equipment you just may be surprised at the information you can pick up, I was. So go take a look and see what new things you can learn for FREE, Jeff