The Alpine iDA-X001 is one of the best looking single-DIN headunits that integrates iPod controls. Not only does the text of the currently playing track appear on the unit, but also the album art is displayed. It looks like the iPod menus could also be displayed on the small LCD, so selecting tracks would be pretty easy.
If this head unit has video and audio out, I would want to get one of them for our van. This would allow the head unit to control the iPod to select a video, and have the video and audio routed to an external monitor in the back.