BillInWebster ,

I teach AI and Lisp at the university level and was looking for a true Common Lisp implementation for the Mac that will let you develop serious projects, but not have all the Rube Goldberg extras of overly-engineered (and either expensive or limited) alternatives. CCL is the best — and I’ve used Lisp, many development environments, for a lot longer than my students have been alive. Nice, clean interface, easy for a beginnner to learn and manage, but with the full power of Lisp under it. Only complaint is that there’s no way I can see to pay for this software. I woud do that happily, and ask my students to do so as well.