I'm not being funny man, but this has been asked plenty of times and at least once in the past week. I'm not barking down at you, just saying try doing a little research before starting a thread. google 'endpcnoise' and look at their range of fans, I think their lowest one is something like 9dB (basically silent unless you are really close) and that's another thing, that site has db readings for most of the fans on there. They also have a range of sound reducing fixtures like the rubber fixtures unholywar23 talked about. Same goes for wiring, so many threads on here and tutorials, just search it. I know you will need to find yourself a converter or just use a 12v AC/DC (not sure, think it might be DC) adapter and make it red to red and black to black. Like i said find a tutoria on here though.