Free online/offline training on WinFX dev technologies from Microsoft Learning
Free training on WinFX 3.0 development technologies (i.e. WCF, WF and WPF) at Microsoft Learning:
Clinic 5137: Introduction to Developing with Windows® Communication Foundation and Visual Studio® 2005
Clinic 5136: Introduction to Developing with Windows® Workflow Foundation and Visual Studio® 2005
Clinic 5135: Introduction to Developing with Windows® Presentation Foundation and Visual Studio® 2005