From Apple's [link|http://www.apple.com/macmini/|mini] page
Upgrade Your School Lab

Replace your PCs with Mac minis and spend your time teaching advanced topics instead of basic computer maintenance. You already have the keyboards, mice and monitors you need. A Kensington lock in the security slot keeps the machines from walking away by themselves.
(emphasis added)

[image|http://images.apple.com/macmini/images/indexports20050111.jpg||||]