Newegg offers the Vizta 27" Flat LED Widescreen Monitor for $79.99. Coupon code "EMCERRE33" drops it to $69.99. With free shipping, that's $20 under our September mention and the lowest price we've seen for any 27" 1080p monitor. (It's the best deal today by $101.) Features include 1920x1080 resolution, 5ms response time, and HDMI. Deal ends December 28.
You very likely are putting your laptop battery into an early grave.