Here are a bunch of useful links to Forum Posts about using DMX and Artemis.
Artemis LBE & Hardware - Official forum for Location Based Entertainment and Hardware. Most DMX threads are here.
New to DMX Thread - Thread on old forum wandering from introduction and soldering connectors to programming and troubleshooting.
Cheap DIY Lighting intro - How to make a DMX floodlight for not a lot! Old Forum link.
DMX Node - As opposed to the floodlight kits, this is about making small nodes of light with some of the HolidayCoro lights.
Light-o-rama connection - How to connect it into a Light-o-rama setup.
DMX and Arduino - Interfacing the Artemis DMX output and a microcontroller. The possibilities just exploded!
Tools for editing the DMXcommands.xml file: