Shiftlt
Managing windows size and position in OSX
...Please note, because the binary is not signed, you'll have to "right click" on the application, click "Open", and subsequently click "Open" in the dialog that appears. You only have to do this the first time you launch the newly-downloaded application. ShiftIt installs itself in the menu bar (optionally it can be completely hidden). It provides a set of actions that manipulates windows positions and sizes. Normally, all Cocoa windows and X11 windows are supported. Some applications might not work correctly or not at all.