I was in the same boat as you, but after reading up on the possibility of G5 powerbooks, decided to go for a G4 right now. I haven't gotten a G4 yet, I'm still trying to decide which one to get, but I thought I would share my knowledge on the situation with you. From what I've read, the current G5 processors require a lot of power to run, and run very hot. If you look in the inside of the G5 towers you can see they require quite a bit of cooling. Plus the fact that we haven't heard hardly anything from apple on G5 powerbooks, mostly speculation. Apple would probably announce the G5 powerbook a few months before they plan to ship them. My thought on it was that apple powerbooks have excellent resale value, I was looking at them on ebay and saw that used ones go for practically the same price as new ones. So if your really set on a G5 powerbook, you could get the G4 now, and sell it on ebay when the G5 comes out. You may take a loss of a few hundred dollars, but just keep it in good condition and you should get most of your money back. Then apply that to a new G5, and you get the best of both worlds. They fastest powerbook now, and the fastest powerbook later.