Steam has DisplayFusion Software (Digital Download) on sale for $10.84.

Features:

• Monitor Splitting (works with Surround and Eyefinity)
  • Split your monitors into multiple virtual monitors so that you can have separate Taskbars, Wallpapers, Trigger rules, Functions, and Screen Savers for each split.
• Monitor Configuration and Profiles
  • Use DisplayFusion to set your Monitor Configuration. Configure the resolution, colour depth, refresh rate and orientation.
• Multi-Monitor Wallpaper
  • Customize your desktop with Multi-Monitor Wallpapers from WallpaperFusion, Flickr, InterfaceLIFT, Vladstudio and more.
• Multi-Monitor Taskbars
  • Keep your windows easily organized by adding a taskbar to each of your monitors. The taskbar on each monitor can be configured to show all windows, or only the windows that are located on that monitor.
• Customizable Functions and TitleBar Buttons
  • DisplayFusion comes bundled with over 30 pre-configured Functions, or you can create your own powerful custom Functions.
• Monitor Fading
  • Focus on the task at hand, by automatically dimming unused monitors and application windows.
• Scripted Functions
  • Need more options? Use DisplayFusion's Scripted Functions (Macros) to script anything you can imagine.
• Triggers
  • The Triggers feature allows you to listen for events, like window creation, window focus, desktop unlock, system idle and more.
• Window Position Profiles
  • Easily save and load your window size and positions using DisplayFusion's Window Position Profile feature.
• Remote Control
  • Remotely control DisplayFusion from your phone or tablet! Change your wallpaper, move windows around, enable/disable monitors and hundreds of other abilities, all from your phone or tablet.