I picked up the usual mid 100 buck model and it worked just fine. The 2 screen models were a lot more and I see I could get 2 of the cheap ones if need be. The trips have been fine and the unit is certainly not the best but then again works and I didn't shell out a lot of cash for a "best" solution.
I'm going on a road trip and would like to keep my 3 yr. old son entertained--I have done some basic research on portable dvd players, and think that what I'm looking for is not the basic unit with carrying case, but rather the screen that can be hooked to the back of the headrest.
My other son is 1 yr. old so he won't know what's going on, but might be a good idea to get a two screen unit.
From what I've seen, it doesn't look like there are really any high end, good quality/solid value portable players out there--lots of bottom end names like Emerson, Coby, etc.
Your comments and suggestions much appreciated!