“Spaces” or Multiple Desktops for one Monitor on a Multi-Monitor system?

Question

I'm running Windows 7 x64 and three monitors. I wonder if there is a program that allows me to create multiple Workspaces/Desktops and switch between them, but only on the third monitor? (As my main application runs on the two others and the third one is an Utility-Monitor).

Essentially something like OS X Spaces or the Gnome/KDE multiple desktops.

Answer 1

I've heard good things about Dexpot which seems to mirror the OS X functionality pretty well. It's also free for personal use, which is always a nice thing.