This Refurbished 13.1" MacBook Air 1.7GHz dual-core Intel Core i5, originally $1099, can now be had for $919 with free shipping at Apple.com. That's a $10 drop from previous mentions of this model, plus, you can upgrade to the just released Mountain Lion OS free! Mac refurbs have an excellent reputation, and they carry the same 1-year warranty as new Macs (extendable to 3 years if you purchase AppleCare). This ultra-thin MacBook Air features a pixel-dense screen for higher resolution, 128GB of flash storage, and a backlit keyboard. Sales tax is charged in most states.