If you expect to work with your laptop under rugged conditions ...

“The Studio XPS 8000 and Studio XPS 9000 are some of the most powerful computers PA3356U-1BRS we have ever offered and have the capabilities to handle the most demanding tasks of high-def video, digital imaging and 3D gaming. ... Among the recognised brands are Apple, HP, Acer, Dell, Toshiba(PA3480U-1BRS ), Gateway, Fujitsu, and Sony. If you expect to work with your laptop under rugged conditions then consider any of the Panasonic Toughbook or Dell(Latitude D600 battery) ...