I have an SUV and have the room to install a 15" LCD panel, which is also cheaper than some of those 7" screens people get. touchscreen kits are a good way to go if u want to use a panel-
http://www.touchwindow.com/miva/merc...Code=KTMT-1500
this is damn cheap for a 15" touchscreen kit- $160! with the montior, this touchscreen setup will cost me $360!, and i have a Dell by philips UltraSharp lcd panel- very high contrast, nice sharp image