One other thing. The Powerbook only has USB ports for external keyboard/mouse input. If you are a big geek like me you have several monitors, a few keyboards and a KVM on your desktop. The KVM is of course PS/2 based, because until now you have used only PCs. Well! Microcenter, and many other retailers I am sure, will sell you a PS/2 keyboard + mouse to USB adapter for $15. Mine is made by QVS and it works perfectly.