I have had some involvement with CentraStage, which is really a tool aimed at helping local authorities support school ICT, as opposed to a tool for use by schools themselves. According to their marketing speel...
It will distribute software, enable remote takeover of devices, deploy and execute custom scripts - automatically to hundreds of devices across any network.
So useful for upgrading SIMS workstations etc, but more useful on an ongoing basis for general (remote) IT maintenance and support for school PCs.
