I bought a Venturer PVS 17200 from woolies 2 years ago. Best £170 I ever spent. No fighting kids on car journeys. ACE.
Not sure about connecting a laptop. I think the screen is too small. As for connectivity, plenty of options.
The model I have has a AV in/out socket for connecting a vcr or tv. It also came with all the wires and connectors you could ever need. An example being that you plug the audio/video cable into the player, the other end of this cable is split into three colour coded "jacks" (yellow, red and white). These in turn connect into the supplied 3 phono/Scart adaptor and plug into the scart socket of the tv. An S-video out socket is also on the back of the unit.
Battery life is between 2-2.5 hours, basically you can watch a film and a half before the battery runs out.
Hope I wasn't too long winded and I hope it helps.