VirtuaWin is an application for the Windows user community that misses the wonderful virtual desktop functionality often used on Unix systems. It is simple, powerful and highly configurable.
Link = http://virtuawin.sourceforge.net/
RocketDock is a smoothly animated, alpha blended application launcher. It provides a nice clean interface to drop shortcuts on for easy access and organization. With each item completely customizable there is no end to what you can add and launch from the dock.
link = http://rocketdock.com/