Just spent a chunk of time at the Apple store today (no, I did not buy any new toys)... my power cord for the PowerBook was literally being held together by tape (the chunky brick part that plugs into the wall)... I hoped it could be fixed/replaced under Applecare, and it was... those friendly guys at the Genius Bar know not to ask any dangerous questions (like, did you trip over the cord, thereby voiding the warranty?!)