Newegg offers the refurbished HP ZR2740w 27" IPS LCD Monitor, model no. XW476A8#ABA, for $419.99. Coupon code "EMCPFWC37" cuts it to $335.99. With free shipping, that's $19 under our refurb mention from four days ago and the lowest total price we've seen for this model. (It's also a current price low for a refurb by $46; for new by $123.) Features include a 2560x1440 native resolution, 12ms response time, and DVI and DisplayPort inputs. Coupon expires April 19.
A 90-day warranty applies, although it's unclear who backs it.