Hi All, I wanted to let you know all of your feedback really helped me pinpoint a great option. I decided to go with a 1500W DC to AC 110V 120V Inverter $53 on Amazon
We went on a short 90 min drive to a local camp site where I plugged the inverter into the lighter outlet, and then plugged in the LCD TV and XBOX. I kept an eye on the digital output and kept feeling the lighter plug and it got a little warm but not hot. The xbox played with no skipping or freezing and we had some bumpy roads. So all in all it was a home run. This model also comes with battery connector so if I dry camp and want more juice I just need to hook it to the RV battery.