.

.

Well, there is LispIDE http://www.daansystems.com/lispide/ which is very basic, but does what you want.

None of the CL implementations require using emacs; its just that Slime has put more effort into supporting them than other editors have.

ABLE is a basic GUI editor that works with several free implementations.

Really, any editor that has a framework for stream I/O could interoperate with a free CL implementation. Something like Slime's Swank protocol is only needed if you want stuff like interactive stack traces, tab completion, and function documentation.

If you like shining colorful editors, there is Cusp, a plugin for Eclipse.

I highly recommend Cream (apt-get install cream)

It's a customized install of Gvim and it's wonderful. It has everything I need and so much more.

That being said, I only want syntax highlighting and par edit, but I'm sure it could do more in capable hands, it is vim underneath, after all!

If you really want to take the red pill with Lisp, Emacs is the only long-term choice, IMO. It's turtles all the way down from there.