In celebration of the launch of Windows 7 today, Microsoft have just added a bunch of new and free Windows 7 themes for your brand new PC or operating system install.

There are a bunch of cool themes (I personally love the "Zune Characters" one), but in a bit of a surprise, for that added cash injection or side deal, Microsoft also added some "sponsored themes" from the likes of Pepsi, Coke, Ferrari and so on.

Go grab a new theme here and spice up your Windows 7 desktop.