Splitview - SplitView enables dual monitor usage with Remote Desktop and widescreen monitors.
DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
MaxTo - MaxTo is a small Windows program that divides your monitors into regions.
Mizage Divvy - Divvy is an entirely new way of managing your workspace.
Preme for Windows - Speeds up your window switching.
WindowGrid - Quickly and easily layout windows on a dynamic grid using just the mouse.