The Apple Store offers its factory-refurbished current-generation 2.4-lb. Apple MacBook Air Intel Haswell Core i5 1.3GHz 11.6" LED-Backlit Laptop, model no. MD711LL/A, for $849 with free shipping. That's tied with last week's mention as the lowest total price we've seen for this model. (It's currently $100 under the best we could find for a new one.) It features an Intel Core i5-4250U 1.3GHz Haswell dual-core processor, 11.6" 1366x768 LED-backlit widescreen LCD, 4GB RAM, 128GB SSD, AirPort Extreme (802.11n wireless), Bluetooth 4.0, Facetime camera, Thunderbolt port, and Mac OS X 10.8 Mountain Lion. A 1-year Apple warranty applies.