We did something like that for my grandmother. She had Alzheimers, and we were told that making a memory book for her would be helpful. She loved it - though she forgot where she put it quite often! ;)
All very good ideas. Somewhere we have old home movies that I might try to get copied on to a DVD or video. We planned on doing that for Mom and Dad's 40th anniversary but it never got done. Any other ideas?