H2 & DVD Players

[Batson34]

My wife and I are finally finalizing our plans for a '04, H2 as they are just appearing on the dealer lots.

We have two young children and travel frequently to visit family (2 hours +). We are both convinced that a DVD player is the way to go.

What's out there and available for the H2?
What are your thoughts on fold down screen in the roof v. headrests?
I wouldn't mind the in-dash screen either but does that mangle your dash?
I'm confident headphone jack will be needed for the kids right?
Finally what do I need to budget for approximately for a DVD system?

Thanks to all in advance!