I use my macbook as a render node and my iMac as the main. What i do is, load the scene to be rendered on the iMac, then i start the render node on the macbook, the macbook is wireless and on the same network, so i dont have to mess with any settings. Then i begin to render on the iMac, and with in a couple of minutes, the macbook starts to load the scene and assist with the rendering. Just so long as you 2 macs can see eachother on the network, ive never had any problems with communication. Regards, E PS. Im sure, however, that I would be faster if you can actually hardwire to the network.