Well, actually, I got a X31 and the graphics chipset borked. They might be resistant to thwacking, but they seem to be less resistant to heat and thwacking. http://blog.goldfishsbowl.co.uk/2008/12/24/ibm-x31-chipset-borkage/ And thusly, I went with a 5 year old Toughbook instead :p Even I can't break it :p