Alienware's M11x was never outrageously priced -- at least not in comparison to Dell's Adamo XPS -- but there's just something beautiful about sneaking in under that magical $600 mark. Right around a year after it was first introduced, the world's most potent ultraportable is stooping to just $599 in a presumed effort to clear out inventory. Dell makes no bones about this being a "limited quantity sale," with the baseline model sporting 2GB of DDR3-800 memory, a 64-bit copy of Windows 7 Home Premium, 160GB 5400RPM hard drive, an over
