I just use one shared folder (with class subfolders and pupil subfolders within it) on my network for pupil work storage.

I fancy doing somethin like having the whole top folder as a paid dropbox folder (to which teachers have access) and then each pupil to have their own free dropbox account and to have these overlap with the pupils subfolder so they can have total access both at school and at home to this folder.

Is this possible with dropbox or another similar product?

No DPA issues please - just technical