Currently, I want to buy a portable laptop and I am looking at two type of Macbook Pro and one type Powerbook G4. I will use it mostly for Graphic Design work (as a freelance designer). I will use Adobe CS3 or Adobe CS2 as the applications (Photoshop, inDesign, and Illustrator). 1. Powerbook G4 1.67 Ghz DL-SD at NZ$2,000 (secondhand) or 2. Macbook Pro 15" Intel Core Duo 2.0 Ghz at NZ$2,500 (secondhand) or 3. Macbook Pro 15" Intel Core 2 Duo 2.2 Ghz at NZ$2,490 (brand new). Which one should I chose?