Dave--Try www.robertwhite.co.uk. They were carrying the Bronica 645RF for a while (though I haven't checked over there lately, since the dollar has been so weak against the pound). It seems like a neat camera.
Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
Academic (Slavic and Comparative Literature)--http://www.davidagoldfarb.com