MegaMacs offers the refurbished Apple iMac 20" Intel Core 2 Duo 2.66GHz All-in-One Desktop, model no. MB324LL/A, for $569.99. With free shipping via coupon code "DMFREESHIP", that's $10 under our September mention of a refurb, which included more RAM, and the lowest total price we've seen for this refurbished configuration. (It's also a current price low for a used unit by $191.) Features include an Intel Core 2 Duo E8335 2.66GHz dual-core processor, 20" 1680x1050 widescreen LCD, 2GB RAM, 320GB 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 December 21.

A 30-day MegaMacs warranty applies.