I've been reading about people's favorite mac and powerbooks always seem to rank the highest. I am ready to get rid of my desktop PC and I can either purchase an iMac or a powerbook. I have an ibook G3 and it's very slow and I have a PC desktop which is equally slow. In any case, I'm ready to make my move, but which move shall I make? I was going to get an imac G5, but I could go get a powerbook instead. Please advise me. Much thanks!