One of the things I don't like about Server 2008, is they have removed the default “Run as…” (a different user) UI shell command from the Right-Click context menu, that was present in Windows Server 2003.
I would use this often on the SCOM console, to test out the user profiles I was creating. Of course, I can still use Run As by launching a command prompt window, but it just isn't as convenient. Luckily, there is a sysinternals/technet tool to get this back…. if you arent familiar with it:
Now I get it back -