CCux Linux is a performance-oriented distribution whose main idea is to remove everything that is not i686-related, such as old compatibility packages, and to have everything from the kernel up compiled in the i686 flavor. Last month's release of CCux version 0.9.8 is also an up-to-date distro, having kernel 2.6.16, KDE 3.5.2, and Firefox 1.5.0.2. I found it to be a damn good distro.
