GhostBSD

If you are new to unix-like operating systems and you don't like KDE or Gnome3 that most of the distros offering you, check GhostBSD. It offers you a graphical installer easy to use and except that it offers you Gnome2. Practically it's like PC-BSD, preconfigured FreeBSD for desktop usage, the only difference is that PC-BSD offers you KDE instead of Gnome.

Here are the site for both OSs

http://ghostbsd.org/

http://www.pcbsd.org/

Please note that there's not much support for GhostBSD.