The talk is about 1 hour 45 mins long; download only, no streaming.
Direct links:
MP4 download: http://edtech.rice.edu/cms/?option=com_iwebcast&action=view&format=mp4&title=CS+Colloquium%3A+Video+Games+and+the+Human+Condition&uri=http%3A%2F%2Fwmdp.rice.edu%2FComputerScience%2FCSBlow-27Sep10%2FCSBlow-27Sep10.mp4
MP3 download: http://edtech.rice.edu/cms/?option=com_iwebcast&action=view&format=mp3&title=CS+Colloquium%3A+Video+Games+and+the+Human+Condition&uri=http%3A%2F%2Fwmdp.rice.edu%2FComputerScience%2FCSBlow-27Sep10%2FCSBlow-27Sep10.mp3
PPT slides: http://number-none.com/blow/slides/games_and_the_human_condition.ppt