I have tried various keyboards. Right now I am primarily using a keyboard from a CRT iMac with my G4 DA. It works pretty wellm, though is a bit small. The keyboard that came with my Acer 386sx (circa 1990) was the best I have ever used. Some of the ergonomic Microsoft Keyboards are quite nice and can be placed in various positions to reduce the stress of typing. I have one here at home.

David