This week at Apple's online store save on refurbished MacBook Airs, Mac minis and more. The 11.6-inch MacBook Air with a 1.6GHz Intel dual-core i5 processor, 2GB of RAM and 64GB of flash storage has been cut by $220 to $679. A $240 discount is offered on the refurbished Mac mini with OS X Server, a 2.0GHz quad-core i7 processor, and dual 500GB hard drives, it's now $759.