here is a review of the 9000 pro: http://www.svpworld.com/9000proreview.htm

and a review of the psr9000 : http://www.svpworld.com/9000review.htm

The owner of that website visits here (and owns a psr9000 himself) and also just posted George's excellent article on the Tyro's! there! http://www.svpworld.com/tyrosreview.htm