I have been working on the domain builder but still reading articles and blogs. While I still love the idea and the concepts, the MVC presentations are really slick. I think that I am going to change direction just slightly and focus on the MVC pattern from Microsoft. I still plan on having CSLA and NHibernate talking together. I just read another article on Ayende's site about having NHibernate using LINQ. I will explore this further as well, but right now my focus is getting the MVC pattern talking ......