Well, I was going to get a DVD headunit... then the thought occured to me, why not build a car pc that has all the functionality of a high end DVD headunit (touchscreen, rearview camera, etc.), and add WiFi/ethernet, cd/dvd burning, voice recognition, radio (scheduled) recording, gps, diagnostics/live engine management, 'on demand' (hdd stored) video, console system emulation, etc.
Granted... all this will take some time (and $$$) to get components together and installed (looking to buy a house) - so in the meantime I will be geting a cheaper DVD headunit so I at least have music. But I think this project will be SOOO much fun.
Thoughts?