Divvy is indeed window management at its finest
I just found Divvy for OS X.
From it’s homepage:
Divvy is an entirely new way of managing your workspace. It allows you to quickly and efficiently ”divvy up” your screen into exact portions.
With Divvy, it’s as simple as a single click and drag in the Divvy interface and your window will be resized and moved to a relative portion of the screen. If that seems like too much work, you can go ahead and create as many different shortcuts as you’d like that resize and move your windows.
I’ve only tried it for a day, butI’m already completely dependent on it. I’m moving windows around like never before.
Together with Cinch and Window Wrangler I now have (almost) total control of my windows. And that feels great.