Hi,
With regards to assisitive devices you can find a great deal of information and resources on paralysis.org. Below will be the direct links to information on assistive devices. (please note this information is in PDF)
http://www.christopherreeve.org/atf/cf/%7B3d83418f-b967-4c18-8ada-adc2e5355071%7D/Assistive%20Technology-Computers%207-08.PDF
http://www.christopherreeve.org/atf/cf/%7B3d83418f-b967-4c18-8ada-adc2e5355071%7D/Assistive%20Technology--Environmental%20Controls%207-08.PDF
Every state also runs an assistive technology program for a list of state programs information please see below.
http://www.resna.org/content/index.php?pid=133
Take Care
