There is a free program for both Mac and Windows from the New Mexico commission for the Blind called Keystroek.
You can check it out here:
http://www.cfb.state.nm.us/apps



Richard
"He that cannot forgive others breaks the bridge over which he must pass himself,” and we forget that only grace can break the cycle of ancient hatreds among peoples. (It is notable that while I have regretted not granting grace to others, I’ve never once regretted extending it.)" - Edward Herbert