NeweggFlash offers the refurbished Apple iMac Intel Core 2 Duo 2.66GHz 20" Desktop, model no. MB417LL/A, for $499.99 with free shipping. That's $200 off and the lowest total price we could find. (For further comparison, it's also $19 under our mention of a used unit from March.) This iMac features an Intel Core 2 Duo 2.66GHz dual-core processor, 20" 1680x1050 LCD, 4GB RAM, 320GB 7200 rpm hard drive, SuperDrive, NVIDIA GeForce 9400M graphics, Bluetooth 2.1 + EDR, AirPort Extreme, iSight webcam (with microphone), Apple Keyboard, Apple Mighty Mouse, and OS X 10.5 Leopard. Deal ends October 20.

A 90-day warranty applies, but it's unclear who backs it.