One of my friends and fellow MVP, Narayana, has published a new book on migrating to .NET. This is called "Migrating to .NET: A Pragmatic Path to Visual Basic .NET, Visual C++ .NET, and ASP.NET" and is published by Prentice Hill. You can buy it at Migrating to .NET.
Also Microsoft has released the final version of the WSDK, which will allow you to work with the GXA protocols like WS-Routing, WS-Security etc.
Microsoft released the final version of the Web Services Enhancements
(WSE) for Microsoft .NET on MSDN Online. WSE was known as the WSDK in
the beta phase and is a .NET library for building ASP.NET Web Services
and clients that use more advanced protocols from the GXA framework,
including WS-Security, WS-Routing, WS-Attachments and DIME.
WSE provides advanced Web Services functionality for Microsoft Visual
Studio .NET and Microsoft .NET Framework developers to support the
latest Web services capabilities. Enterprise ready applications can be
developed quickly with the support of security features such as digital
signature and encryption, message routing capabilities, and the ability
to include message attachments that are not serialized into XML.
Functionality is based on the WS-Security, WS-Routing, WS-Attachments
and DIME specifications.