DBTech 175 Watt Portable Micro Power Inverter With USB Port - 12v AC to 110v DC Car Plug Converter For Your Ipod, iPad, iPhone, Tablet, PSP, DVD Players Laptops Netbooks And cellphones
i bought this so i could watch dvds on my laptop in the car on long trips and it powers my acer aspire 5738z through the regular charger.  USB is great for charging ipods