Here’s a quick tidbit that might save you sometime as you install VS2010 and TFS2010 RC.  In our previous releases, Team Explorer (the client for TFS) was a separate installation.  In VS 2010, it’s now included in the setup for Visual Studio Professional, Premium, and Ultimate.  This means you don’t have to run the stand-alone Team Explorer setup afterwards.  The separate installation package still exists for users who need to interact with TFS but don’t need all the other features of Visual Studio, and it’s included on the TFS distribution media.  Note that you won’t see Team Explorer listed as a separate component during VS setup – it’s just in there.

Hope that helps!