Hi all, Mark & Gennette, Sorry for lacking in details earlier. I think it would be more like portable brief-case type of ruggedizing that has PCI and ISA bus. Brief-case for portability. Bus for extendability, I think notebook might be short of this (?). It shall be subjected to fall, water splash, vibration, salt, high humidity, submerge in water, dust and sand abuses. Mil. spec - but not certified. Looking for sources and method for: 1. ruggedised brief-case, 2. way to water-proof, shock-proof, seal the unit (seam, display, 3. Or someone has this and selling it cheaply (less than twice the commercial unit $) ? Ling SM >More info would be good; What do you want to do? What failure modes are likely? The wearable computers people may know good stuff here, etc., unsure yet. Mark