While we've seen plenty of 500GB hard disks for laptops but Samsung's SpinPoint M7 is the first with the guts to call itself "rugged." The dual-platter, 2.5-inch drive spins at 5400rpm and features a 400G operational shock tolerance -- that's about 50G better than the claimed tolerances of other 500GB drives and 75G better than Sammy's own Spinpoint M6. Expect to see the M7 ship sometime this month.