Not the cheapest we've ever seen, but close
At its current price of $110, this Samsung S22B310B LED Monitor is not its lowest price ever but still beats other sites by $10. This model doesn't have a huge body of reviews yet, but most are quite positive. $110 - Samsung 21.5-inch S22B310B LED Monitor
The monitor has 21.5-inches of viewable display, and at 1080p resolution, the pixel pitch will be roughly comparable to most basic laptop screens. The LED-lit screen has a 5ms response time and quite sharp in both bright and low light levels. For its current price, this monitor is a solid deal, so long as you don't mind using a DVI input and don't need integrated speakers.