On Whirligig TV, they have a page all about David Attenborough's Zoo Quest For A Dragon.
In 1956 David travelled to Komodo to make a film about the Komodo Dragon. The site has a streaming video clip from the film. They have kindly given me permission to allow you to download the video here (364k).
Amazon.co.uk has Zoo Quest products available, and I STRONGLY recommend reading the book, or even better (because David Attenborough reads it), get the book on tape. It's a great adventure.
Zoo Quest books and tapes are also available in the US:
Zoo Quest stuff at Amazon.com