To install Xorg type the command
sysinstall and choose
configure then
distributions then
Xorg.
To configure X use
xorgconfig, you'll need to know your monitor's horizontal and vertical refresh rates and the type of graphics card you have. To run X type
kdm for kde
gdm for gnome.
To set up sound (there's no Alsa on FreeBSD) type
kldload snd_driver, this will load all sound drivers, then
cat /dev/sndstat will tell you the actual driver selected for your card, then add a line to /boot/loader.conf to load sound on boot, for example an audigy uses snd_emu10k1 so add the line
snd_emu10k1_load="YES".
For much better and totally comprehensive details see the FreeBsd handbook
http://www.freebsd.org/doc/en_US.ISO...ook/index.html