I just recently purchased a used powerbook g4 to learn the mac ropes on. I upgraded the RAM on my pc myself and was wondering if installing the sticks on a mac were like doing so on a pc. Since I just got it I dont want to screw it up already. Also, is there a button you have to turn on for the wireless to work like on pc's? Or does it just connect automatically. I'm very new at all this mac stuff. Thanks!