They aren't going to make any difference for solid state equipment. I'd probably use them on a mouse mat because surface vibration will cause the Naga 2014 (and other mice with the Phillips twin eye sensor) to jitter.
What's the lighting you have in your case? I love the way that looks. Is the psu in the cable management part of that case?
The lighting is from a small LED cable, many companies make them, mine is made by NZXT. The PSU is behind the motherboard in this particular case.
Maybe a photo from the front showing both screens?
Sweet setup, your audio gear makes me a bit jealous.