People like that look and, of course, we have found a desktop theme that dresses your Desktop in a Windows Live Style. Its name is XP LIVE and it is totally free.
If you have ever seen Windows live services you'll recognize this style at first sight. XP LIVE changes the look and feel of the windows and the taskbar, as well as the start menu, buttons, scroll bars and other controls.
If you want to change your desktop and you like the interface of Windows Live services, try XP LIVE, you'll love it.
Finally, the consume of resources is far lower than you expect.