示例n层ASP。NET MVC3应用程序的最佳实践(使用EF 4.1)

I am looking for a sample ASP.NET MVC3 N-Tier application that demonstrates best practices (uses Domain Driven Design and Entity Framework 4.1 Code first). I found the following. which one do you recommend out of these (or any other one not in this list)?I am looking for a sample ASP.NET MVC3 N-Tier a