I subscribe to a bunch of Microsoft blogs and one of them revealed a gem in the past month.  RDCMan, a tool which allows an admin to group together remote desktops, preset their username/password combos and connect to those groups with a right-click option, has been invaluable in my work lately which involves quickly jumping from server to server or from servers to a group of workstations.  The gorgeous thing about it is not merely a gallery of thumbnails of the connected sessions, but the ability to interact with the thumbnails with sufficiently accurate mouse clicks.  Heartily recommended.

Here's the original post:
Introducing Remote Desktop Connection Manager 2.2 (You had me at EHLO - the Microsoft Exchange Team blog)