Newegg offers the HP 21.5" 1080p LED-Backlit LCD Monitor in Black, model no. W2271d, for $99.99. Add coupon code "VISACHECKOUT" and pay with Visa Checkout to cut it to $89.99. With free shipping, that's the lowest total price we could find by $10. It features 1920x1080 native resolution (1080p) and VGA and DVI-D inputs. Deal ends October 31.
Note that this coupon can only be used once per account.