Update October 2009
Hello, I am a former employee of Eaton Hall and had years of being alone in the building late at night. There were indeed many creepy and uncomfortable elements of the manor, many of which other witnesses have alluded to. However my experiences are a little different not quite "paranormal" although it would not surprise me if it was indeed frequented by ghosts.
The turret room by the elevator on the third floor in locked and unused because it is a storage room were old files and seasonal decorations are kept, also it isn't insulated as well as the occupancy rooms. I have gotten stuck in the old tiny elevator (one of, if not the first elevators in Ontario) and to this day have a paranoia of confined spaces as a result, also spending time in the large walk in bank safe in the lower level added to this. I would never go in there if I was alone in the home for fear it would close on me as I was 1 of only 2 or 3 people who knew the combination and it was pretty sound proof, this is where silverware and vintage liquors were stored.
The sounds of elevator music turning on and off is not uncommon as we had a music system filtering into all common areas were some speakers worked some didn't on occasion. The outer fountain was also on a switch controlled from inside, which would explain it going on and off. An occurrence which would happen is myself locking up for the night and shutting off everything, but as a drive away I would see lights on on the third floor, needless to say I would not venture back to shut them off.
The creepiest place if your are ever "fortunate" enough to view is the boiler room beneath the hall with its monstrous boilers that hiss and whine in the dark cave like bowels of Eaton Hall.