Thanks - that is excellent advice. I particularly appreciate the warning about salesmen being better at selling themselves than the product.

I have sold related systems quite successfully in the past and will likely continue to do so. My view of the sales-person's role is to get an initial meeting in the door and to close the sale - I certainly expect to be involved at some point. The main problem for me is the time and effort in chasing potential sales leads from the other side of the Pacfic.