In my post Team Foundation Server Process Templates? I mentioned where you could find some of the existing templates. A couple of weeks ago some of our MVPs Martin, Ed and Joel created a codeplex site to share templates and best practices: The description from their site:
Project Description Set your templates free! Share and discover Team Foundation Server process templates and other goodies here. This CodePlex projects serves as a repository for open source Team Foundation Server (TFS) process templates, work item type definitions and report definitions. TFS uses process templates to configure new team projects.