First up, food. Dan Barber is such an amazing speaker to listen to, very entertaining and provocative talk.
http://static.videoegg.com/ted2/flash/loader.swf
Next up, Fragrance. I love how Chandler Burr starts out as already a very great and natural speaker. By the end of the video, his exitement has infected you. I wont ever think of Chanel No. 5 the same way again.
http://d.yimg.com/static.video.yahoo.com/yep/YV_YEP.swf?ver=2.2.30
@ Yahoo! Video