OS X has Spaces for that. You can even bind apps to spaces. I have the following set up: Firefox and entertainment apps on Space 1, IRC on Space 2, XCode and M

OS X has Spaces for that. You can even bind apps to spaces. I have the following set up: Firefox and entertainment apps on Space 1, IRC on Space 2, XCode and MacVim on Space 3. I don't bind anything to the remaining 3 spaces. The combination of Spaces and Exposé makes for great window management. And yes, I love the multi-window aspect of OS X. Document-based applications are not only easier to use, they are easier to write, too.