So I've got several external hard drives, and they're all in different types of enclosures. They get really, really hot... especially when they've been doing a lot of work. I'd like to find a way to cool them down a little bit, but after doing some research, I haven't found a solid answer. I'm thinking about trying to find (or build) a small shelf specifically so they can be stacked without physically touching each other (as heat rises). In addition, I was looking online for a tiny (~2") fan to cool them. Unfortunately, I have found neither of these items online, so I may have to improvise. Does anyone have any suggestions? Or think these ideas may work?