Michael Sandel of Harvard is an example of a brilliant teacher who captivates and inspires students. His famous class, "Justice," has engaged 14,000 students. Now this class is available - gratis - online. See the nytimes article here. Sandel's website where you can catch his classes is found here at justiceharvard.org.
The first two classes are: The Moral Side of Murder / The Case for Cannibalism, and Putting a Price Tag on Life / How to Measure Pleasure.
