Thats actually a very good thing to have.
I did a master designer course for webdevelopment several years ago, and one of the things high on the list of priorities was giving support for disabled people such as colorblind, blind, deaf dyslexic, etc etc
Its was a large part of the course, and though you hardly used it, it was one of the more important things, "knowing" how to adress the issues.
In HTML it started with the alts, and titles for images, in order for blind people to have their screen reader read out the alternative names and titles.
But this went a lot further, from ease of use approaches, to using icons/buttons with imagery depickting its function.
I applaude your efforts <img src="smileys/smiley32.gif" border="0" align="middle" /> , though motivated from selfish reasons !!! <img src="smileys/smiley3.gif" border="0" align="middle" /> (just kidding <img src="smileys/smiley17.gif" border="0" align="middle" /> )