Although I'm afraid I can't offer to send you a top-techie from Microsoft to help you with rolling out Windows 7 in your school, I can offer a good second best, thanks to the TechNet team. They got together with some of the product and support gurus on Windows 7, and created a big batch of videos on Windows 7 for IT Managers, containing very practical advice for people deploying Windows 7.
There's a long list of topics covered in the E-Learning Series:
You can view them all on the TechNet site, or download them for offline use or to view on your commute.