MegaMacs offers the used 4.9-lb. Apple iBook G4 1.33GHz 12.1" Notebook, model no. M9846LL/A, for $139.99 plus $19.87 for shipping. That's $10 under our June mention and the lowest total price we could find by $84. Features include a PowerPC G4 7447a 1.33GHz processor, 12.1" 1024x768 LCD, 512MB RAM, 40GB hard drive, DVD/CD-RW combo drive, ATI Mobility Radeon 9550 32MB graphics, Bluetooth, 802.11g wireless, and more. Offer expires July 12.

A 30-day MegaMacs warranty applies. Also, an OS is installed, however, it's unclear which version.