www.linuxbbq.org have a look at the blog, or releases... play with the liveones then install if you feel happy with one.
Have you checked out LinuxBBQ yet? http://linuxbbq.org/"Proof" is a nice lightweight spin on Xfce, with an iso at only 286M. http://linuxbbq.org/wordpress/?p=173
LinuxBBQ "Cream" (based on Debian "sid") released, an installable live session that features no less than 76 Window Managers:
And it still fits on a CD!