Hi,
This free application should prove useful to many of you:
Clickless Mouse makes using a computer easier for people with repetitive strain injury, carpal tunnel syndrome, some motor disabilities and other health problems.
This application allows to use a mouse without clicking - by moving it only.
By reacting to user mouse movements this program simulates left/right mouse click, double left mouse click and left/right mouse button holding.
Clickless Mouse can be used with a virtual keyboard to type by moving mouse (e.g. Free Virtual Keyboard).
By using Clickless Mouse with a virtual keyboard the user can fully control a computer by moving mouse with a palm, a forearm or a foot.
Download and more information:
Clickless Mouse