I guess this can go in here since it is kind of hardware. I am looking into buying a DC to AC power inverter to use in my car so I can watch DVD's on my laptop for long trips. I was wondering if anyone has ever used one of these, and how well they work. I am planning on getting a 400 or 600 watt one. And I just want to run my ibook off of it. Any personal experience and notes is appreciated, as I would like to get one soon.