Allan, Hugh Lovel's excellent 3-hr. presentation at the Guelph Organic conference a couple years ago was professionally recorded and sold at the conference. I believe he retained a copy. Of course it's up to him whether he feels it appropriate to fwd to you.(or to copy). It was interspersed during one session with some references to his concurrent slideshow, but the wealth of his accessible verbal info would outweigh those non-visual factors. .....manfred....
That sounds GREAT, manfred! -Allan