automatic gallery and gallery permission

I am trying to do a customization of a new G2 install, and getting a little stuck. I dont know if there is a easy way to do this or not, but would appreciate any help you could provide.

My example situation:
I have 15 students, each with their own G2 login and user gallery. There are 5 kids included in each of 3 'Groups' (grouped by their school name).

When an anonymous visitor comes to the site, i would like them to see only a gallery for each school. These galleries would contain only a small number of hand-picked photos (2 or 3 from each students user gallery) as determined by a administrator.

When a student or teacher logs in, i would like them to be able to see each others user galleries as well as the school galleries.

Any Ideas?

Thanks!

Is there an easy way to copy an image from one user gallery to an administrator-owned public gallery preserving all the photo data (owner, keywords, comments, etc.)?