My suggestion would be to take ASP.NET with C#...you will need to become more proficient in both technologies.  If you have a Java backgroud, then C# should not be much of a stretch.  However, PHP to ASP.NET is quite a stretch, particularly in programming user interface and backend applications.

Hope this helps...

    B:

    Take the ASP.Net with C# training.  Straight C# training is most likely for Windows Forms development, not Web related.

    That training is going to be very beneficial.  Bear in mind however that any regular ASP.Net training is going to teach you how to develop complete ASP.Net pages (with the aspx extension).  For DNN development, since it provides the page framework for all the pages, what you develop is dynamically loaded modules (ascx extension, actually a server control).  Therefore, after you do your basic ASP.Net training, you have to learn the architecture of DNN module development.  This is a little complex at the beginning but the idea is that you don't have to develop from scratch all those things that DNN gives you in the framework, just concentrate on the functionality your module needs.

    An excellent resource for learning is Michael Washington's site at the following address:  http://www.adefwebserver.com/DotNetNu....  That site has a bunch of step by step tutorials for anything you need to know on DNN development.

             Carlos