Hi if you want make a free Course... whit theachers of the MIT... in principle I think it´s fully free (perhaps after you have to buy books...)
http://www.udacity.com/
I think Udacity's ex-stanford guys - following on from ai-class - there's also mitx being launched by MIT [naturally] and coursera.org, following on from ml-class and db-class last year...
anyway they all look quite promising...