MacConnection offers the 2.4-lb. Apple MacBook Air Intel Core i5 1.6GHz 11.6" LED-Backlit Laptop, model no. MC968LL/A, for $699.99 with free shipping. That's tied with last week's mention as the lowest total price we've seen for this model. (It's a current price low by $190.) It includes an Intel Core i5-2467M 1.6GHz Sandy Bridge dual-core processor, 11.6" 1366x768 LED-backlit LCD, 2GB RAM, 64GB SSD, AirPort Extreme (802.11n wireless), Bluetooth 4.0, Facetime camera, Thunderbolt port, and Mac OS X 10.7 Lion.

Of note, this system is eligible for the OS X Mountain Lion Up-to-Date Program. Also, no optical drive is included.