Best fan for the price?

[Schultzie67]

I have this build, and I was wondering what the best, cheapest, and quietest fan would be for my build. I am looking for a 140mm fan and preferably around 9-12 dollars a piece. Another thing that is not necessary but if it was white or blue (not led) it would be appreciated. Thanks for your recommendations in advance.
http://pcpartpicker.com/user/Schultzie67/saved/4afO

 

[Dark Lord of Tech]

http://www.xoxide.com/140mm.html