First: Do you do anything to cool your Hard Drives?
Do you mount them in the 3.5 inch bays or 5 inch bays with the metal mounts that come with the HD acting as heatsinks?
Fans for HD heat reduction?
I've seen these double fans on a mount to attach to the bottom of a Hard Drive. Do they add vibration and possiblely affect stability / lifetime of my HD?
Are they worthwhile.
I've also seen a mount that adds heatsinks to all sides of the HD and has a fan too. Overkill?
For HD units with fans do they blow into the case or exaust outbound?
Every working computer must be improved .... or replaced ...
Keeping a whirring clicking mechanical thing cool can't hurt. I have one of the cheetah 15k drives and noticed a 10 degree (F) difference between a light breeze blowing over it versus not. As I have case fan holes up the ying-yang, I was able to situate an 80mm fan blowing air over the top and another on the other side sucking it over the top. I ducted air from below from another 80mm fan and turned them all down with a rheostat to cut down on the noise.
What the hell, it's fun and it will more than likely increase the lifespan of the drive. I would however, avoid doing it if you have to make your case one of those monstrosities that I've seen on those "Lookee My Case Mods" sites ("Yes, I let a chimp with a Makita do my case mode and it's 2 degrees cooler!")