I would like to buy my first PB soon, but I have a few questions: 1. Can someone explain the difference between 4-pin and 6-pin firewire? Any benefits or shortcomings to either? 2. Does anyone know the contrast ratio or brightness on the PB's? 3. Can you scroll with the touchpad? 4. How are the speakers on the 17"? 5. Does the LCD look great despite not being WUXGA resolution? 6. Can I install my own hard drive easily? I would like a 7200rpm HD, but the PB only comes with a 5400rpm. 7. Anything else I should know about Apple before I switch (speed, OS, etc.)? 8. Will PB's ever be 64-bit? Are the G5 models 64-bit? Sorry for so many questions. I probably have more, but it is late and I am brain dead right now. I will probably wait to buy until after MWSF, just in case. Any opinions? Thanks.