>I started exploring MVC3 with this site http://www.asp.net/mvc/tutorials/getting-started-with-aspnet-mvc3/vb/intro-to-aspnet-mvc-3. I started with VB.
>
>I would now like to use C#. Is there a way to indicate that to VWD (2010 Express)?

Just back up a step in the tutorial URL and choose C# instead of VB.

Don't worry too much about the differences between MVC 3 and MVC 4. That can come later. For now you need to lock in the fundamentals of the three tiered architecture. Good luck!