Ok so i have found myself to be in a bit of a dilema. I need a new battery for my 15inch titanium powerbook, 867 with 1 gig of ram. I have looked online and the only place i could find one was Macsales.com and it looks as though it is not an original Apple made battery. They are claiming higher capacitys then the original. So my question is should i purchase an aftermarket batter for my powerbook? I havnt been able to find a stock brand new battery for my tibook and im not sure apple even makes them anymore? Help please?