I work in an assistive technologies lab in my University's library. We help people with disabilities use computers, and as such, we use lots of different software to accomplish this (screen readers, screen enlargers, braille keyboards, etc). I've been talking with my boss and I think I've convinced her to let me put in a Linux box to see how that works compared to all of our other Microsoft/proprietary software. So my question is, what software should I look into (besides Orca)?

Thanks in advance,
Dan