MegaMacs offers the refurbished Apple iMac 20" Intel Core 2 Duo 2.66GHz All-in-One Desktop, model no. MB324LL/A, for $569.99 plus around $35 for shipping. That's $34 under our July mention of a similar refurb (which featured more RAM) and $151 below the lowest total price we could find for a comparable used unit today. Features include an Intel Core 2 Duo E8335 2.66GHz dual-core processor, 20" 1680x1050 widescreen LCD, 3GB RAM, 320GB 7200rpm hard drive, DVD burner, NVIDIA GeForce 9400M 256MB graphics card, Bluetooth 2.0+EDR, 802.11n wireless, iSight webcam, and OS X 10.6 Lion. Deal ends August 17.

A 30-day MegaMacs warranty applies.