Hi all, I don't know if I have mentioned this before but apple sells covers for your notebook keyboards made by Iskin: http://www.iskin.com and they produce more than apple sell. I talked to them about making braille and large print ones but they said they'd previously decided not to. I mentioned the braille display support in leopard and that more and more people who can take advantage of keys labeled in braille/larger fonts are using the Mac even if it's only to do windows. They are going to reconsider.
I really love the Iskin cover for my Macbook Pro and plan to cover all my keyboards after cleaning them except possible the powerbook.