Ammonite
Well-known member
These guys are also worth a look - again designed for mobile usage (12-24v) so no power issues. I've had one of the 11" DVD Combo units for 3 years and have been very pleased with it. Around 1.5 - 2.0 amps draw from memory.
http://www.augustint.com/products/ptbdvd.htm
http://www.augustint.com/products/ptbdvd.htm