Doug, those photo stories are great! I plan to do them with my Kinders.
I relate to your frustration with not having the technology around to use with the students. Normally, I only have my camera to use in my classroom with the K's. However, once or twice a year, I get to borrow a set of 10 cameras from the school district tech. department. They were great to use with the K's and I did a similar plan as you by teaching the K's how to use the cameras, letting them practice and then showing them how to take better pictures. We took the cameras on our forest walks to take pictures of nature and them discuss them with as a group back in class. With only one camera, I've given the kids an opportunity to be the class reporter and take photos of learning going on at centre time. It was a great way to capture learning going on( without me taking the photos) and then discuss them at the end of the day. Let me know how it goes with using tech. with the K's.