Yesterday I stumbled on the site for O'Reilly School of Technology. There's not much that needs to be said about O'Reilly. They have great technical books that are very well laid and easy to understand.
The on-line training provided by the site has different courses, as well as certificate programs that upon completion will provide the student with a certificate from the University of Illinois.
Courses go for around U$398.00, and there is a 7 day trial period (refund).
The creators of the first commercial Web Site once again are doing a great job! It's worth your time to take a look.