Migrating .NET Applications to Services Oriented Solutions With WCF

With the entire buzz going around about Service Oriented Architecture/Solutions and building "Loosely coupled" systems. The big questions are: How does a developer build a Service Oriented/Loosely-Coupled solution with .NET? Isn't Web Services enough? Does a person have to use .NET Remoting? Does the person have to learn how to build MSMQ (Message Queue) solutions with .NET? If these are the questions, then .NET 3.0 and Windows Communication Foundation is the answer!