MegaMacs.com offers the used Apple iMac Intel Core 2 Duo 2.66GHz 20" Desktop (pictured), model no. MB324LL/A, for $929.99 plus around $30 for shipping. That's $41 under our mention from a year ago and the lowest total price we could find by $122. Features include an Intel Core 2 Duo 2.66GHz dual-core processor, 20" 1680x1050 widescreen LCD, 2GB RAM, 320GB 7200 rpm hard drive, dual-layer DVD burner, Bluetooth 2.0+EDR, 802.11n wireless, iSight webcam, and Mac OS X. Of note, a 30-day MegaMacs warranty applies.

Also available is the used Apple iMac Intel Core 2 Duo 2.4GHz 24" Desktop, model no. MA878LL/A, for $989.99 with around $30 for shipping. That's the lowest total price we could find by $48. Features include an Intel Core 2 Duo 2.4GHz dual-core processor, 24" widescreen LCD, 2GB RAM, 320GB 7200 rpm hard drive, dual-layer DVD burner, Bluetooth 2.0+EDR, 802.11n wireless, iSight webcam, and Mac OS X. An AppleCare warranty applies until January 2011.