MIT posts courseware on the web - FREE - http://ocw.mit.edu/index.html
"By the end of this year, the contents of all 1,800 courses taught at one of the world's most prestigious universities will be available online to anyone in the world, anywhere in the world. Learners won't have to register for the classes, and everyone is accepted"
<p>Thank you for this link - greatly appreciated!!</p>