Hydra: A lightweight OS X window manager with a powerful API
If you're looking for a window manager for OSX without having to actually configure anything, you can try using Spectacle: <a href="http://spectacleapp.com/" rel="nofollow">http://spectacleapp.com/</a><p>For instance on my imac 27'' I have Option+Command+Left|Right keys mapped to side (similar to windows 7.<p>And I can also have 4 windows open at once using Shift+Option+Command+Up|Down|Left|Right to move them to the different corners. Works really well with less than 2 minutes of setting the hotkey on a simple GUI configuration window.