mcl general info request

[fadushin@rodan.acs.syr.edu (Fred Dushin)]

Could someone please answer some very general questions about
mcl for me?  I have a mac+ and am in need of a vanilla common
lisp interpreter.  What is mcl?  Is it a commercial product?
Where can I get it?  How much is it?  Can one get a simple
interpreter without toolbox functions?

Thank You,

          ---------------              Fred Dushin
          |             |              1111 Lancaster Ave. 1st Fl.
          v             |              Syracuse, NY  13210
   --------------   Y   |              (315)426-2649
  /   Does this   \_____|              fadushin@mailbox.syr.edu
  \ program halt? /
   --------------
          | N
          v 
         HALT