MegaMacs offers the refurbished Apple MacBook Air Intel Haswell Core i5 1.4GHz 13.3" LED-Backlit Laptop, model no. MD760LL/A, for $599.99 plus $17.42 for shipping. That's $232 under our mention of a refurb from two weeks ago and the lowest total price we've seen for this model. (It's also $315 under the best price we could find for a new unit.) It features an Intel Core i5 1.4GHz dual-core processor, 13.3" 1440x900 LED-backlit LCD, 4GB RAM, 128GB SSD, 802.11ac wireless, Bluetooth 4.0, Facetime camera, Thunderbolt, and Mac OS X 10.9 Mavericks. Deal ends January 7.

Note: No warranty information is provided.