Ok we are in business... Using a Minibox M350 Universal Mini-ITX enclosure with one of their M3-ATX DC-DC Power supplies and an Asrock Q1900-ITX along with a samsung 2TB sata drive. Everything booted right up and pretty much worked out of the box As you can see the system is drawing about 8.5 watts at idle. This little M3-ATX power supply rocks. You can go in via serial and setup how long it waits to book up once the car starts, how long to stay online after the car is turned off and even had low battery voltage protection. I followed the apci thread on these forums and was able to get DSM to shut down when you press the power button. Thats how this power supply shuts down the computer. It has a connection to the power switch on the motherboard and when it hits the timers you set it shuts down. Only thing left to do now is wait for amazon to deliver a USB wireless network adapter for me so I can get it to auto sync over all the movies from my 1513+ in the garage and then setup the little HooToo Nano router off the ethernet port so the kids have wifi in the car to stream all of their 200+ movies in DS video