Microsoft have released a WSE add-in for Visual Studio .NET. From the web site:
WSE 2.0 simplifies the development and deployment of secure Web services by enabling developers using Visual Studio .NET and the .NET Framework to more easily apply security policy, establish long-running secure conversations, retrieve and validate security tokens and more. New features include a policy framework, enhanced security model, message-oriented programming model, and support for multiple hosting environments.
Download it from http://msdn.microsoft.com/webservices/building/wse/