CowBoom offers the used Sony PlayStation 3 Slim 12GB Console, model no. CECH-4201A, for $134.99. Coupon code "SonyPS335" cuts it to $99.99. With free shipping, that's $5 under our mention of a used unit from December and the best price we've seen for any PS3 console outside of trade-in deals. (It's also $90 under the price of a new unit.) It comes with one DualShock 3 wireless controller.
Note: No warranty information is provided. Also, this used unit may have scratches or dents and/or be missing accessories.