Like Sandor said, you only would need a card to access that part of a hard drive larger than 136 gig. Speed will not be improved. If you do get a card, watch which card you get. Some will not allow you to put your mac to sleep depending on your OS. > > I'm a novice with PCI cards, but I thought they were necessary to take > advantage of the newer drives' higher access speed. If so, is it worth the > $80 for the PCI card?