Open Source in Education
What I've long suspected turns out to be true; you can spend less money on hardware as well when using open source software. Double the savings! Don't believe me? The IT manager at Westall Secondary College (where I occasionally help out) has said just that in an article called "Ubuntu breathes new life into school's abandoned hardware".
Because we get a plug, I suppose I should explain a bit about the work I've done at the school :-)