I just got a 800MHz G4 iBook. 640MB RAM with a 40GB hard drive. AirPort Extreme and Bluetooth. For the most part I am liking it so far. My one problem is how do I disable the laptop from going into sleep mode when I close the screen. When running off the battery this is ok, but when I am at home I may be listening to some tunes on it but do not need the LCD open. I turned off Sleep in the power settings for under AC power but it still sleeps.