Windows Vista has a new cool feature of Flip windows on task bar using the new cool WinFX and WPF.  The software available in the link below provides the same functionality to windows XP.  This software will help you to easily find the windows using the new Flip 3D technology.  I tell you guys that Ctrl + Tabs is really a boring thing to navigate to windows.  Do it a try.  After installing the software just click F9 you will see the result then explore the options of the software for more amazing effects.

30 days tried version Software is available here http://www.otakusoftware.com/