A quick post which takes advantage of a new Windows 2008 Server feature to workaround the lack of tools available today.
Need to admin your Server 2008 Server from Vista? Publish the Server Manager and/or MMC from the server as a RemoteApp.
I know a lot of you might be thinking, "Thanks Captain Obvious" but it can come in handy if you haven't thought about it. It also works for Server Core installs.
The only caveat I can think of is that I think you might need a Terminal Service license to do this for longer than 120 days.