I've got the Samsung Spinpoint 1TB HDD installed on my rig. However, whenever it gets accessed, it makes a bit of noise, which is getting really annoying. What solutions do you recommend to lower this? Would adding a second (exactly the same) make things better?
You could place the tower farther away from you. Or as mcnumpty suggested, line the case with acoustic dampening material. Note that this will increase your temps. There is nothing you can do to the drive itself to keep it from making that access noise.