Microsoft just released two new tools.

Check them out!!!

asp.net mvc preview 2

http://blogs.msdn.com/brada/archive/2008/03/05/asp-net-mvc-preview-2.aspx

Microsoft Silverlight Tools Beta 1 for Visual Studio 2008

http://www.microsoft.com/downloads/details.aspx?FamilyId=E0BAE58E-9C0B-4090-A1DB-F134D9F095FD&displaylang=en

Happy programming!