A few weeks ago, Larry Smith gave another talk at the university on following your passion. This was a response to the feedback that he got from that TED video. The video can be found below (two parts):
http://www.youtube.com/watch?v=8KYMkY_8YpE
http://www.youtube.com/watch?v=0Kt_SAeuNCI&feature=plcp
In this video, he expands on how to find your passion and what to do with it in his usual captivating and provoking way. If you liked that TED video, I'd recommend watching this one as well. It's certainly helped provoke some more thoughts about my career path.