Accommodating Multiple Disabilities

After last night's class, I started thinking about my identical twin sister. She was born profoundly deaf, and also with some brain damage, which has never fit into a neat category. She has some problems with language - with putting sentences together in a logical way, and with thinking clearly. I was wondering about what kind of accommodations you would have to make for her on a website. First, I would make sure that any computer she works with has as many security controls as possible, since I would worry about her vulnerability to scams, and other trickery online. Second, I of course would have to implement the accommodations we discussed last night for the deaf user - clearly printing everything that is said in any audio or video. In addition, I think simple language would be important, and using the active voice, where the subject and verb of a sentence are pretty clear. Perhaps lots of graphics that illustrate the concepts being described would also be helpful. I would also have lots of pictures of people - particularly famous people (in her particular case, that would get her attention) - and I would strive to make my candidate look appealing and friendly. I would also put clear instructions on the site, about what the user can and cannot legally do, such as copying and pasting copyrighted material.
Finally, I would try to make sure that the graphics didn't compete in any one place for her attention, as that would be confusing.