Team Concert is such a cool flexible tool, and there are so many features that its easy to miss, yet its easy to get started with. It just 'grows' as your environment needs. I learned a few things from this video and and just have to share. I really like that you can edit code directly from source control, save it to a stream, associate it with a work item, and then submit it to a build all within the web interface.
The ability to do resource leveling using drag and drop between sprints is also wickedly cool. One view to see the work load of your entire team like a Gantt chart, but without the evil side effects like you have in MS Project.