My Powerbook G4 charger port needs to be replaced as it kills any charger in about 2 months flat, as well as the casing. Anyone know how much that would run me? Also, the computer gets very very hot, and eats battery life at almost double speed, I assume that's something else that needs to be replaced, anyone know what it is that needs to be replaced? Also, at the prices those things run (I assume expensive), would it just be better to purchase a new computer. Thanks for any help you can give.