Well I got a replacement NGW100 to replace the one I borked.
That was a expensive mistake. :(
I've got it successfully modded so it can now be USB powered. :)
There is a convenient hole next to the USB port which is the USB's 5v rail.
You just need to run a wire from there to the positive pin of the power supply, next to the double set of IO pins.
I put a diode in place as well so I can swap power supplies on the fly and 12v cant go and fry the USB port. ;)
I also put some heatshrink over it to make it look professional and reduce the chances of shorts.
Well I got my NGW100 last night. :D
If you dont know what it is, its basically a tiny board which runs Linux.
It features two network ports, SD slot, serial pot and a slave USB port and its designed to be a simple yet powerful Network GateWay (NGW).