MegaMacs offers the refurbished Apple MacBook Pro Intel Core 2 Duo 2.4GHz 13.3" Laptop (grade B), model no. MB990LL/A, for $549.99 plus around $20 for shipping. That's $156 under the lowest total price we could find for a used model. (This one is refurbished.) It features an Intel Core 2 Duo 2.4GHz dual-core processor, 13.3" 1280x800 LED-backlit LCD, 4GB RAM, 250GB hard drive, SuperDrive, AirPort Extreme (802.11n), Bluetooth 2.1+EDR, Gigabit Ethernet, iSight webcam, and Mac OS X 10.6 Snow Leopard. Deal ends January 23.

A 30-day MegaMacs warranty applies. This grade B refurb may have scuffs, scratches, or other cosmetic blemishes.