What is your Mac OS X (Intel) based lisp setup (of any dialect), how do you like it, and how painful was it to set up? I'm looking for a versatile lisp that is easy to set up, but if you feel strongly about investing more effort, or even money, I would like to hear why you think it's worth it.
I am currently using newLisp, which was a breeze to set up and gives me simple access to things like graphics and sound. I have heard of SBCL with emacs and slime, but that seems a real pain to set up, and I'm still not friends with emacs. I want to see if there's anything I'm missing out on. I would primarily be using this for pleasure, with no commercial goal in mind.
Please recommend only one setup per answer to enable voting, but feel free to submit multiple answers.