Digital BW, The Print

You might find "Charthrob" helpful:

http://hybridphoto.com/forums/archive/index.php/t-36-p-4.html has some specific discussion about using it for calotype

http://www.botzilla.com/blog/archives/000544.html for the tool

I've recently heard that some MAC users under CS4 have had problems -- while windows user have not. But afaik the code is all canonical ecmascript