I just read a NY Times article (free registration required) on David
Burnett, including a picture he took of John F Kennedy with a H3V. He
doesn't use Pentax anymore, but it was an interesting article. He uses
both digital and film, and takes a practical approach to deciding which
one to use in a given situation. If anyone is interested here's the link:
http://www.nytimes.com/2005/06/08/technology/circuits/08schiesel.html
Glenn