Do you need help in your daily life at home, school, work? The Central Coast Assitive Technology Center is a team of rehabilitation technologists that help determine the best devices and ergonomics for you if you live near the central California coast. If, like me, you don't, the links are still quite useful.
You have a computer (I know because you are reading this) so check out the links to make your computer even friendlier. There are specific lists for PCs as well as Macs. Or look at the long list of shareware. You are bound to find something good.
From these links, I found the Trace Center which is designing a usable world for all. ALL -- that includes you and me. The world is all around, we may as well take advantage of it.