I'm looking to replace the old 60GB hard drive in my Macbook with a 160GB, but I'm a bit ignorant, unfortunately, on what the Macbook requires. I found an MCE brand HD at Macmall for $145, but NewEgg has a Samsung for $99. They both say Serial ATA 150, so does that mean that the Samsung would work as well? Any help in this area would be appreciated. Thanks!