Case fans for lowest temperatures

[osamaalkhalaileh]

I have the zalman z11 case and it can hold a total of four 140mm fans and one 120mm fan. I was wondering what are some good fans that i can buy. If there are some with Blue LED's i would perfer those. Dont want to go too pricey with these

 

[lycros]

what's pricey?

 

[osamaalkhalaileh]

what's pricey?

not too expensive