MegaMacs offers the refurbished Apple iMac Intel Core 2 Duo 2.8GHz 24" Desktop, model no. MB325LL/A, for $719.99 plus around $25 for shipping. That's $154 under the lowest total price we could find for a similarly-configured used unit elsewhere, although we saw it for $2 less in March. Features include an Intel Core 2 Duo 2.8GHz Penryn dual-core processor, 24" 1920x1200 widescreen LCD, 4GB RAM, 320GB 7200 rpm hard drive, SuperDrive DVD burner, ATI Radeon HD 2600 PRO 256MB graphics, Airport Extreme (802.11n wireless), Bluetooth, and Mac OS X 10.7 Lion. Note that a keyboard and mouse are not included.

A 30-day MegaMacs warranty applies.