I am strongly considering upgrading my 12-inch PowerBook (in my signature) to a larger hard drive. Right now it has the standard 5400 rpm 80 GB Toshiba ATA in it. I have done some searching around and it seems like the only 2.5" ATA drive w/Perpendicular Recording is the Seagate Momentus 5400.3. Is this correct, or does anyone else know of another one?