Hey guys, I was thinking about my implementation of Sass (apparently, it's not supposed to be in all caps) and came to the conclusion that it's not simple enough. I wrote a version that obviates the need for a bunch of the parentheses. You can check it out here:

https://gist.github.com/957123

The example above can now be written thusly:

    (make-css
     '(("body.loading"
        font-size "12px"
        color "#fff"
        (" ul#sidenav"
         (" li"
          blah "blah")))))

Have a nice day!