Concur; all very well said and thoughtful. In regards to protection, if I may I offer my experience. Being overseas, I have battled with black outs, surges, spikes, brown outs (sags), overvoltage (swells), line noise, dreaded lightning strikes, bullets and... to no avail. Nothing, absolutely nothing, that I ever bought or did to protect my equipment worked. In the end of such an event the equipment got toasted no matter what I had put in place before them to protect them. For me it was a complete waste of money and time. Bad luck? Perhaps. Shit happens? Most definitely! In regards to power conditioners and isolation transformers. I have owned a number of different brands over the years but I honestly don't think they did anything for me... the last being a FURMAN AC-210 something or other p-conditioner that I returned as I thought it was introducing noise (might have been in my head though or coming from another unsuspected naughty source). I have had a few noise issues (mostly white noise) in the past that both p-conditioners and iso-transformers were unable to solve but were solved immediately, to my great dismay, when I simply used a different outlet; rearranged my components; and/or moved my system slightly over by a meter or so, go figure?! So I definitely concur that a dedicated line in some shape or form is probably the strongest option but even more so to simply try a different outlet and/or shift your system around slightly.