Newegg offers the refurbished HP W2071D 20" LED-Backlit LCD Monitor, model no. W2071D, for $77.99 with free shipping. That's the lowest total price we could find for a refurb by $26, although we saw a new one for $8 less last Black Friday week. Features include a 1600x900 resolution and both DVI-D and VGA inputs.
A 90-day warranty applies, but it's not clear who backs it.