Quick and dirty Raspberry PI desktop

apt-get update && apt-get upgrade

apt-get install --no-install-recommends xorg openbox lightdm fbpanel onboard

Enable Desktop Autologin and HDMI audio

sudo raspi-config

Fix HDMI audio for old TVs

sudo vi /boot/config.txt

Autostart fbpanel:

echo "fbpanel &" > ~/.config/openbox/autostart