I've decided to sell my powerbook in search for a newer computer. I have a powerbook G4 867MHz 12". 640MB of RAM. An 80GB 7200RPM HD. CD-RW/DVD-ROM. Airport Extreme. 32MB nVIDIA graphics card. The keyboard is missing the F1, F2, F11, and F12 keys. There is a small scratch on the screen and is...