in other words, if it can be removed from the case, spring for a new case with a fan.
I have a Simpletech 160GB external HDD. It's USB2.0, 7200 RPM, and aluminum case. I got it for a great price: $50 after rebates.
My problem is that I don't know if I'm using it too much... I've never had a external HDD before. I use it for my laptop, it doesn't move around at all except when I go to and from college/home.
It's usually on for at least 6 hours and up to 12 hours everyday. Sometimes I turn it on for a few minutes to get a file and then shut it off again. IIt does get hot if it's continually in use, retrieving/writing/etc.
What I want to know is, is this bad for the HDD? There's no cooling for it so that's what really worries me.