PC-BSD

A fully-featured FreeBSD 6-based operating system, PC-BSD has
been designed with the "casual" computer user in
mind. Installing the system is simply a matter
of a few clicks and a few minutes
for the installation process to finish.
Hardware such
as video, sound, network and other devices will
be auto-detected and available at the first system
startup. Home users will immediately feel comfortable with
PC-BSD's desktop interface, with KDE 3.5 running under
the hood. Software installation has also been designed
to be as painless as possible, simply double-click
and software will be installed.