If you are using Team Foundation Server, exists a set of tools that you should consider, at least take a look at them.
Bellow, you can find a list of my favorite ones, that i would like to share with you:
TFS File Sharer - Mimics SourceSafe like file sharing.
TFS Continuous Integrator - A TFS 2005 based continuous integration solution. Of course, it's built in if you are using TFS 2008.
TFS Dependency replicator - A tool to make changes in the source tree when certain events occur (like copying files when a build completes).
TFS Build Virtualizer - Rather than having one physical machine for each team or build server configuration, manage a pool of virtual machines automatically.
SLR TFS Get Latest Version on Check-Out
Outlook 2003 TFS Addin
Team Foundation Server Administration Tool
Team Foundation Server Event Subscription Tool
Team Foundation Server 2005 Power Tools - best practices analyzer, work item templates
Team Foundation Server 2008 Power Tools - command line tools, build notification, process template editor, custom check-in policy, best practices analyzer, work item templates
Feel free to suggest others.