The closest thing I've seen is
DeskSpace and TopDesk by the same company. But they're not free and they don't give you anywhere near the functionality of Compiz. DeskSpace basically just gives you a spinning cube that isn't quite as good as the one in Compiz, and TopDesk gives you window management similar to Expose.
It's $30 for both.
I also found a freeware program called
ZoomIt that allows you to use your mouse wheel to zoom into your desktop. You just unzip it to a directory and run the file in the background. You can put a link to it in your Startup folder to have it automatically run at start up. But again, this doesn't work as well as the enhanced zoom plugin in Compiz.
If you search around, you can find various programs that make Windows act similar to some of the different Compiz/Fusion plugins.