I have a Mag Innovision monitor. It's LED so uses much less power than the usual fluorescent backlighting.
Many other monitors could work for you:
I-Inc IK141ABB 14" Widescreen LED Monitor
Mag Innovision GML1920/GML2226/GML2427
Samsung SyncMaster BX2035/BX2235/BX2335
Some don't have VESA mounting; that was a critical factor for us. We just lift
it off the wall and restore the base when we move it around to a shelf facing the salon
seating when we want to watch a movie
from our digital storepile.
Many TVs today use 12VDC also, but you may have difficulty finding a barrel plug if it has the one with three parts
to it rather than the center-positive/ring-negative typical. You don't need to destroy your brick to use these; save the brick for any time you might want to take it ashore, and get a pigtail, cheaply, from a myriad of sources, to tie into ship's power. Use a mike to get the right size in mm for both pin and barrel, or call the maker to get that spec - a pigtail is a couple of bux.
We listen to movies, or other sound items such as the radio
, through an ordinary automotive unit which has 4x45W output, but also has USB (iPod, i.e.) input, SD chip input, and remote
(male-male extension from the earphone-out jack on our computer). VR3, cheaply available at WalMart, includes a remote
. The CD reads WMA and MP3s, too.
At this time, the only AC device in our system is our laser printer. Our computer and WiFi
are both from Marine PC's & WiFi by IslandTime PC
and use straight ship's power, as does our wrt54GL Linksys router. Our powered hub, and our 2x 2T and 1x 1T and 500G HDDs need "clean" 12VDC, so are powered through the 12VDC-out jack built into my computer.