Um, so I just realised that the speakers right next to my computer are unshielded (though I thought they were). How bad a thing is this in practice?

andy

edit: a schoolboy error, I know. I am now spooked out enough to be looking for an external hard drive to backup my already raided drives.

Did you know that gas can catch fire too? I would buy a backup fire extinguisher to put next to the other 12 if i was you.

Hard drives are actually fairly tolerant of external fields. Your CRT screen would complain first.