Sysinstall

Sysinstall is the menu-driven installer that FreeBSD uses as a default. You see it during the inital install and you can run it at any time from the command line. It's the fast way to install packages (instead of compiling from ports) as well as the easy way (for newbies especially,) to configure the network and do other system-configuration tasks.

The man page for sysinstall warns of the following bug:

BUGS
    This utility is a prototype which lasted several years past its expira-
    tion date and is greatly in need of death.

There is a project under the title of 'finstall' that aims to improve the installation process. The official site is available here.