Really nice setup! I know my emotiva amps have a toggle switch if you want the blue lights off. I have never tried using it, though. Like you said, your eyes should be on the screen.
Yeah, I have an OWC Mercury Pro Aluminum dual-drive enclosure with two 2TB drives in it. The first thing I did was disconnect the damned blue hard drive activity light. That thing pretty much illuminated my entire basement. Very annoying.