Interesting dilemma. I considered using a 9 or 10" CRT mounted in the glove compartment. A lot cheaper than an LCD, but I decided against it (even though I, too, am poor). One thing you could do is write software so that everything is sent to the monitor backwards, so you could mount it in your back seat and look at it in the rear-view mirror. If you wanted to chop up your dashboard, you could get a smaller display, mount it in your glove compartment facing forwards, cut a hole above it, and stick a mirror in front of it so that the image is reflected on your windshield. My cousin did that with a digital speedometer, it's nifty.