Learn all about MTH / DCS for free.

Gary,

I heartily recommend the free DVD if you want to learn all about what DCS products are available for sale.

it's a sales tool, not a source of technical information.

I'd gladly pay for the book over the DVD. I doubt there is a comparison. 

Get the DVD, but supplement it with Barry's book. Well worth the price.

Ah Matt, speaking of price, the question is whether your visit to York was worth the airline price.