Just recently, the SDL team at Microsoft released an update for their Secure Development Lifecycle process template for TFS 2010.  You can download the new MSF Agile + SDL template for free and give it a spin.

You can read the details on the SDL blog here: http://blogs.msdn.com/b/sdl/archive/2010/05/27/announcing-the-msf-agile-sdl-process-template-for-tfs-2010.aspx

Let us know what you think!