I know people are saying this is a bit steeply prices, but I think this is perfect. I've been looking at the various options and they typically all require three components- the touchscreen/lcd itself, a controller board of some sort, and then the Arduino itself. Then you have to actually put it all together, and as people have mentioned you end up with a lot more than two pins being used.

This one at Adafruit costs $40, uses five or six pins, is smaller and doesn't have the Arduino built in.