Thanks for all the suggestions so far!
New details:
1) It is primarily to be used as a shared resource for using the Connected Steps program by B-Squared (not sure if people are familiar with this - if they are I apologise!).
2) New theory has been thought of, using a central desktop computer to be stored in the technicians room, where all the other desktops/laptops can access it as a network drive (?) to backup their machines and access the master B-Squared file.
3) We do not require the login style used in most other schools, much like kiosks I think someone mentioned.
Any new suggestions welcome.
Andy