Taptap Hotkey Extender

TapTap Hotkey Extender is a tiny super-efficient tray-based utility for keyboard fanatics. It monitors for certain unusual hotkey combinations not supported by most programs (like doubletap right shift key). When such hotkey combinations are detected, TapTap will simulate a normal hotkey that the user has configured. In this way, you can configure any of your programs to respond to these extended hotkey events as if they supported it natively.

http://www.donationcoder.com

Side Slide

Stretch Your Desktop. SideSlide is an advanced, unobtrusive, dockable, skinnable, keyboard accessible, highly configurable Desktop Extension on Steroids! SideSlide will help you to finally clean desktop clutter and will make your computer friendlier and faster than ever before. Get instant access to everything you have and so much more.

http://www.northglide.com/sideslide.html