What you need is called a Power Invertor, and we sell a large assortment of them. You specifically need one that will plug into the DC outlet in your vehicle, and convert 12v DC power to 100-120v AC, 50/60Hz power. If you want to see the Power Invertors we sell you could look here: http://www.bestbuy.com/site/olspage.... I hope this helps out!

These two cameras are both very similar in features, but there are slight differences. The Sony has a slightly larger LCD screen, an optical viewfinder, and a more powerful flash. The Nikon has a much larger range of shutter speeds available, and higher possible resolution. All these differences are very slight, and you should be happy with either one. I hope this helps out!

Directions on how to connect a PSP to the internet can be found on Sony's website here: http://playstation.custhelp.com/cgi.... I hope this helps!

You can purchase it here: http://www.bestbuy.com/site/olspage.... I hope this helps!