garden lantern

Does anyone have any recommendation (and advice on how to find) a 1000W dimmer that doesn't "sing". One of my first electrical projects in my new (to me) house was replacing an overloaded 600W dimmer running 900W of Halogen lighting. However my local big box store only had one dimmer rated that high and it was their cheapest one (and ugly). However we almost never use it because the bulbs are so noisy when dimmed. I've seen threads here with similar stories where the recommendation is to get heavier duty bulbs or a better dimmer. I'm not aware of heavier duty halogen bulbs so I guess I need to try a different dimmer. I just checked again, and that is still the only 1000W dimmer they carry.

I have/had a small ceiling light where the halogen bulb was not working, so bought a new one and still didn't work. Thought maybe there was a loose wire so took the switch plate off the wall and saw no problems. Then removed the light in the ceiling to find that the wire connectors were slightly melted and looks like the fixture had heated up to the point that the wires were "crumbling" in my hand. Did the aboveafter turning off the power at the box and have left it off. I am not sure what caused this, although just had site finished hardwood floors put in my house and they went into the basement to connect their sander. Also, I had a dehumidifier plugged into the same "line" as well as some outdoor low voltage lights and outdoor post light. Seems that the line was overloaded somehow. Is there any thoughts on how I determine the problem. Perhaps it was just due to the light fixture, but that fixture is rarely on and the house is newer (6 years old). Not comfortable with turning the switch back on at the box until figuring out what caused it. Thanks in advance for your thoughts and what I should do.