If you ever want to get (yourself or someone else) pumped on science, I highly recommend the stylings of Neil deGrasse Tyson. He is the director of the Hayden Planetarium in New York. He has a sharp memory for detail and great communication skills – a fabulous combination for an Astrophysicist working on the front lines of public education.
In this great interview with Stephen Colbert (about 80 minutes long) he covers a beautiful cross-section of topics and leaves me stoked about my next visit to the Vancouver planetarium. The video is about two and a half years old but still totally relevant.