Nope, never considered it really because im not sure what they could do. I dont think its anything really wrong with the case. I just think its a bit of a loose fit kind of. The drive is securely in place, its just the gap. Its only a few millimetres but I can see light through the gaps. It may just be my cheapo DVD drive too. Im not sure if its affecting air flow really, but I suppose I could just put some cardboard in the gaps or something. Or maybe some thin strips of black rubber or something. Its not too bad anyway.
As for the sharkoons, I think I might have got lucky because mine make very little noise. Almost silent really. The GPU and CPU fans are louder.