Im looking into getting a camera for my grandfather.. I have been trying to convince him to switch to digital for the past 5 years, but he has always sworn by his 50 year old nikon. All of a sudden, he is interested. He does not know how to use a computer, so ease of use is extremely important. He basically will take the card out of the camera, bring it in to the store, and have the pictures printed. In your opinion, which camera is easier to use? He gets frustrated with technology pretty easily. I want him to get the xti body with a different lens, but he likes the 40d with kit lens he saw in the paper. He does not want to switch lenses. Additionally, he asked me if canon offers any time of "lessons" to teach him how to use the camera, besides the manual. If there are no lessons, any videos? Any other advice? I can get a decent deal on canon's so i would like to stay with them.