Fredo, here's the full spec & US prices....
(probably have to multiply prices by 2 for the UK )

DVD Advanced System
Mounted in the center console for easy operation and loading by the rear occupants, this DVD player is compatible with DVD, CD, MP3, WMA, and JPG formats. System also includes two 7-inch monitors matched to the interior of your vehicle with high quality active matrix video screens and two wireless headphones equipped with a battery saving feature that turns the power off if not receiving a signal from the system for over 3 minutes. In addition, each headrest is equipped with a headphone jack for wired headphones and the wireless remote has an easy to use layout and can be used from either monitor. An extra audio and video input is included with each montior to connect other devices, such as a gaming system. And because the system has three independent sources, a variety of entertianment options are avilable to your rear seat passengers. Monitor kit available in Black, Beige, Gray and Tobacco.
DVD Player and Monitor KitMSRP $2,150.00Montior Bezel Kit-BlackMSRP $400.00Montior Bezel Kit-BeigeMSRP $400.00Montior Bezel Kit-GrayMSRP $400.00Montior Bezel Kit-TobaccoMSRP $400.00Comfort Seat BracketMSRP $210.00