Obviously, no one on earth wants to lose their data. But to an academic, a hard-drive meltdown can be particularly horrific. Imagine, years of original research, gone. Just gone.
Luckily, there are plenty of online backup services to help stop this from happening. I’m a big fan of Mozy myself, but there are tons of choices. Ninety plus (on this particular list), in fact.
Enjoy– and save soon, save often!