Panasonic Toughbook withstands almost anything, my Lenovo X61 is pretty durable as well. I also have an Apple MacBook Pro, and it's far from durable. Decent computer but will fall apart if not taken care of.
Processor speed, anything 2.X GHz Core 2 Duo would suffice, 2GB RAM and 7200RPM HD with whatever size you think you need.
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Z4 sdrive30i | Deep Sea Blue | Ivory White Nappa Extended Leather | ZSP
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