GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
SwitchResX - SwitchResX is a tool designed to manage resolutions of all your monitors and HDTVs.
WinDock - WinDock is a window manager ideal for large, or multi-monitor setups. Features:
EasyRes - EasyRes is a fast screen resolution switcher for Mac OS X with live animated previews.
QuickTile - A lightweight utility for allowing you to quickly snap windows to a tiling grid under your existing...
Resolutionator - Resolutionator makes it simple to use any of your display's available resolutions.