Expercom offers the refurbished Apple iMac Core i5 2.7GHz 21.5" Desktop, model no. MC812LL/A, for $799. Coupon code "imac21" cuts it to $729.97. With $22 for shipping, that's $7 under our mention from last month, $547 off list, and the lowest total price we could find. It features an Intel Core i5 2.5GHz quad-core processor, 21.5" 1920x1080 (1080p) LCD, 4GB RAM, 1TB hard drive, DVD burner, Airport card (802.11n wireless), Bluetooth, and OSX. Deal ends April 30.

A 90-day Expercom warranty applies.