Gelid Solutions Silent 12 are definitely a nice line of fans.
Quiet and in the same time effective. There are options for thermal
control and Pulse Width Modulation control. You also get to choose
between 80mm, 92mm and 120mm size of the fans, with abilities
proportional to their size (with no loss of quality). The only thing
I didn't like was their colour. In my personal opinion white blades
do not look nice in motion. Still in any other aspect Gelid fans are
product that wouldn't disappoint any of you that had obtained for
your love for peace and quiet. "