Great piece! I'm looking forward to the second one.
This was a very useful and insightful article. I have a request... Could you make your html/css print friendly (Hides the left column of navigation)? I would like to print this article out and distribute to my dev team for offline reading and discussion.
Great! Please, keep it comming Roy.
I like your comment on DB unit testing. I fully agree, that such code is too costly to mock and this area should use integration testing