Seagate has just introduced a 120GB laptop hard drive, which it claims is the highest capacity laptop drive to date and the first Serial ATA unit for laptops (not that we don't have any reason to doubt them). It may be the biggest, but it sure ain't the fastest, spinning at just 5200 rpm. If you want to run at a full 7200 rpm you'll have to settle for Seagate's 100GB model (oh, the sacrifice), although its high power consumption will probably rule it out for most users. Both models are part of Seagate's Momentus series of drives, which also includes a 120GB model running at 4200 rpm. Pricing information wasn't immediately available.