I have a shuttle sff SK41g which I want to use in my truck. Can I safely use an Inverter? Radio Shack has one for 99.95 300 watts continuos. I figure that the 200 wat shuttle psu and Flat screen KDS Rad 5 should not tax a 300 watt inverter. My other concern is how critical is the 60 cycle sine wave coming out of the inverter. I could not find the wave form for the RS unit in the pdf file. Other units use a modified sine wave or pure sine wave. Of course the Pure Sine wave is considerably more expensive. Does anyone have experience or knowledge of this? THanks