I know it is just common sense to do everything to prepare for a possible HD crash, but how often does this really happen? I have only had imacs, ibooks, and powerbooks, and have never had an issue. But sometimes the idea of HDs crashing gets thrown around here like its a sandwich and a normal occurrence!!! All this RAID talk, backing up to externals (and hearing about those crash a lot), it just always seems like every HD is on the verge of exploding! Like you have a piece of gold because it didn't fail on you yet! Is the science and technology behind them still not to the level we would want them to be, or is that impossible? What about HDs makes them more likely to fail than anything else? With 4 HDs going to be in place for me, are the chances pretty high that at some point at least one of them is going to take a dirt nap? Or are there some guys that never, ever, have a problem with HDs? It seems that everyone always has a story about some HD that acted a fool.