Other World Computing discounts a selection of used Apple iMacs, with prices starting at $149. Plus, all orders qualify for free shipping. Each item is covered by a 90-day OWC warranty. Note that for some models, available quantities may be limited. Some best bets:

• Used Apple iMac Intel Core 2 Duo 2GHz 17" Desktop for $149 (pictured, low by $57)
• used Apple iMac Intel i5 Quad 2.7GHz 21.5" Desktop for $829 (low by $7)