I'm looking at 1TB internal Hitachi hard drives on OWC for my Mac Pro, and they have two of them. One is normally $89.99, currently $57.99, and the Enterprise one is normally $149.99, currently $52.99. I looked at the specs, and it looks like some minute things are better about the one, and some about the other. For example, the Enterprise uses more wattage while running, but it's non-correctible read errors are only 1 in 10^15, as opposed to 1 in 10^14 for the non-enterprise drive. What does enterprise mean? And which one should I get as a normal computer user?