Apple.com has this 11", 128GB Apple Certified Refurbished MacBook Air for $799 with free shipping. Note that refurb stocks fluctuate, and this model may not be in stock for long. 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). The ultra-portable, ultra-thin MacBook Air has a solid state drive for improved performance and includes the iLife '11 suite of applications. You can upgrade to OS X Lion 10.7 for free. Sales tax is charged in most states.