Hey All. I'm thinking of getting a camera for one (or both) of my daughters for Christmas. The are 11 and 13 years old. They have a lot of fun taking pictures with my older SD550, and taking little video clips. They are pretty proficient with technology now, and are getting into downloading images/movies to the mac, and starting to play around with iPhoto and iMovie. I know they would like a camera of their own, and I would do so to encourage their education in this area. So, any suggestions or input would be appreciated. Couple of requirements are: * Prefer Canon * not too big * not too expensive * not too complicated * does pics and videos * some advanced features for tinkering and learning Thanks in advance.