WinFlip

One of the nice things of Windows Aero is the Aero Flip 3D program, which makes it possible to switch between different windows like on this screenshot. But you don't need to have Vista to have programs like Aero Flip 3D. You can download WinFlip for free here instead. WinFlip is a program, which will pretty much do the same as Aero Flip 3D does. And you don't need Windows Vista to run the program, it'll also work on Windows XP! Below a screenshot of the program: