From Bill Reynolds:
PCLinuxOS is distributed as a LiveCD, and can also be installed to your computer. The LiveCD mode lets you try PCLInuxOS without making any changes to your computer. If you like it, you can install the operating system to your hard drive. Locally installed versions of PCLinuxOS utilize the Advanced Packaging Tool (or APT), a package management system (originally from the Debian distribution), together with Synaptic, a GUI frontend to APT for easy software installation. PCLinuxOS has over 12,000 rpm software packages available from our software repository.