[all variants] Rugged laptops?

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http://ubuntuforums.org – I was wondering if anyone has any experience with rugged laptops. I'm graduating in May and hopefully I'll be doing disaster relief work overseas. My laptop is a refurbished HP530 so I don't have high hopes for it lasting very long in the environments I'll be working and so I'm looking for something else. It doesn't really have to be that fancy, the most intensive program I'll run is google Earth but it would be nice to have a heads up of what to expect. Right now Panasonic's toughbook series seems to be the main contenders, any others? (Hardware)