Here's a site you want to visit if you are in a chair: Wheelchair Diffusion This is a fun site to read, with plenty of links to other sites by and about the disabled.
If you haven't quite decided if you are ready for a chair -- or which chair you might be ready for -- here's some help in considering mobility devices. He has reviews for wheelchairs and scooters and assistive devices for use throughout the house.
If you are planning a trip by air in 2008, check out the toilets you are likely to find on the Boeing 787s. Be sure to read the post, because it may not be as dreamy as they say.
Enjoy your visit.