PC Connection Express offers the 4-lb. Mobile Monitor Field Monitor Pro 15.4" 720p USB 2.0 LED-Backlit Widescreen LCD Monitor, model no. FMP154A, for $289. Coupon code "Summer10" cuts it to $279. With free shipping, that's $10 off and the lowest total price we could find. This portable folding monitor, which is designed to accompany a laptop, features a 1280x800 (720p) native resolution, built-in numeric keypad, three USB ports, AC adapter, and more. Coupon expires June 11.