Got one of the new iMacs for testing. It didn't ship with Leopard installed (came with an upgrade disk), so I upgraded.
Installed a bunch of apps including Parallels (with Windows and Ubuntu).
After discussing various implementation options with Martin it became clear that an all-VM based solution to deploying the Sanako system will not work (at least, not easily). As a result, I used BootCamp to partition the drive (32GB for Windows), and installed Windows. As I used a custom install disk, there are a couple of issues to sort out, but I'm close to being able to testing the Sanako system on it. I'll need a USB>serial adapter to test the teacher station part of this equation, and then I'll need to work out the USB headset/soundcard config.
Once all of that works I'll need to get the BootPicker working.