Learning LISP

I've been making my way through SICP, I've reached a point where I feel I have to start experimenting with a Lisp compiler. I'm on a Mac so I downloaded LispWorks, I'm too lazy to figure out how this IDE works.

Can someone point me in the direction of a simple command line compiler/interpreter that will work with the SICP?

>>3
Racket or Chicken for actual coding
Nobody does "actual coding" in Scheme. It's a useless academic language, like Haskell. Real lispers code in CL, Clojure and Arc, never scheme.