Linux Compatible Blind Assistance Programs

Does anybody know of any Linux compatible programs for the visually impaired that would increase screen size, read stuff to the user, etc?
It's not for me, it's for my cousin. I wouln't mind paying for such a product. He wants to buy Zoom Text because he's had good experiance with them in the past, but it only runs on Windows. Plus, I think paying 320$ for the upgrade version is a bit much. I've been showing him SUSE, and he really likes it, so I thought I would give something similar that would run on Linux a try.

XMag and KMag for maginifaction and KDE Accessibility for everything else. Note that KDE Accessibility is only for KDE 3.4 and newer.