I don't see anything about those fans that is especially enticing, especially for the premium price. There are many good, quiet high flow fans to chose from and a couple are listed below. Obviously if you live outside the U.S. your choices may be limited but if in the U.S. there are many good 120mm fan choices to chose from and I don't think the Corsair AP/AF or Gentle Typhoon AP15 are particularly good choices.

The fans in the links below have good airflow and are quiet.

http://www.newegg.com/Product/Produc...scrollFullInfo

http://www.newegg.com/Product/Produc...82E16835233097