Morphix is a modular distribution of Debian GNU/Linux with LiveCD support. Thus, you simply burn the CD image onto a CD-ROM and boot from the CD to have a working GNU/Linux system, with no hard disk installation. The advantage is that you can try out GNU/Linux without touching your current data. If you like what you see, then installing Morphix on a hard disk is straightforward. Simply click on the icon on the desktop (or choose the installer from the morphix/babytux submenu). But note that Morphix is still experimental and no guarantees are given, so use Morphix at your own risk for now.
To obtain the ISO image to burn to your CD visit http://morphix.sourceforge.net.