Computer project

While my computer project is in limbo, I given thought to other things. Like, why are there so many external drive bays in my Thermaltake case (6)? I mean, how many external drives do you want or need? Maybe two.

Then I began reading articles about peripherals that fit in these bays. I saw fan controllers. They come in single bay and double bay height. Cute, but do they work? Is this a worthwhile investment?

Then there are card readers. Again, a nice idea, but how many times would I use it. I generally transfer files from my camera and camcorders by cable.

What else is there to fit in these bays? if you have any suggestions, pass them on.