I am absolutely amazed at the responses here. Is this f'n preach to people who want to grow day or something. This is a weed smokers/growers forum, yet people sound like they have a problem with people growing weed. I think for most of us growing is illegal, you cant tell me it is only permit holders who post on this forum, and so what if it is illegal for me to grow.... the law does not decide what it right and what is wrong it only decides the law. Fuck the law. I grow weed and if I get caught I get caught. ----------- To answer your question - PC fan's are the quietest, use like 4 X 120 mm pc fans, two for intake and two for outtake. You could also use more lower wattage cfls that would run cooler also. So maybe instead of one big 100+watt you use 4 X 30 watt bulbs. Good luck bro and to everyone who sais "oooooo don't risk getting trouble with your parents" F#$%@# them!