I have a brother who is going to be turning 10 in around 3 weeks and he has been wanting a mac laptop. He most certainly doesn't need anything fancy, just something to fool around on (iTunes and other little tasks like that). He currently has an 8 year old HP laptop with a 14" screen and a 1ghz processor and it is slowly dying. He also may get an iPod nano for his birthday, so what would be best for him? A late model 900Mhz G3 iBook, or a early G4 iBook? For this mac, I have a limited budget, around $170. The screen size doesn't matter, just something comparable to what he already has. Also, what would be the best OS for it 10.3 or 10.4 or (for the G4, 10.5)? In a pinch, would a Titanium PB 15" be a good choice?