VBeat has an interesting article on BumpTop, a Windows overlay that adds a little 3D to the Windows desktop that moves all the crap you don’t really use – widgets and the like – to a set of 3D walls and stacks up files and folders a la OS X stacks.
BumpTop can get by with a 1.4-gigahertz processor, a gigahertz of main memory, and an integrated graphics card. Those components aren’t necessarily all that demanding. But if you have lots of items on your desktop, it will slow down and choke on the processing task. It’s better to use a machine with a dedicated 3-D graphics processor.
The light version of the app is free and a more powerful version costs $29. Give it a gander.