For those people who admire the shining effect of switching windows - Flip3D under Windows Vista but have only Windows XP, here is a good news. WinFlip is such a very little eye candy to simulate the cool effect. It's extract & run ready without more configurations needed. Most important, it uses less resource (More precisely, it can adjust its effects on hardware performance automatically) and is free to use.
use WinKey + Tab to switch between windows. WinKey + Shift + Tab to switch backwards.
Click here to download the latest version 0.41. More information can be found on:
Main Site: http://www.tokyodownstairs.com/ (already down for a few days :-( )
Official Mirror Site: http://winflip.stylekings.de/
New version comes also with mouse gestures. So just try it.