>Thanks. Most of my work has been primarily in ntier development separating the business logic from the front end and I'm looking for good examples of that principle in dotnet. Kevin's framework does that and I could study his framework in depth to learn it better but I like to have available alternative ideas for methods of accomplishing the layer separation in a hardcopy reference.

I think that would be a good book, then. I think if you understand both Kevin's and Rocky's concepts, you're good to go. I won't make a claim to completely understanding either, but I think both their ideas are well thought out, and explained well.