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 the Apple Store. 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.