I like the status email sent by TFS\'s alerts mechanism when a build breaks. However I would like to send such an email to the entire team and not rely on the team to subscribe
I generally like the TFS Build Status Tray by Rob Aquila. Be sure to get the 1.0.1 Beta, as this lets you easily specify the projects to watch using a bit of GUI and also has a notify icon that changes color, so you only need to open the actual build status list when the icon turns red. The 1.0 version had a fixed icon, and only notify toasts in the corner of your screen.
There is also a version of the same tool that is meant to be shown full screen on a wall mounted display for instance.