fan choice for case and cpu cooler help

[Bobobear]

i'm looking for 6 cheap fans (4 for case in antec 900, 2 for the Mugen II cooler)

so far i've found 4 type of fans that fit the buget i'm on

CoolerMaster R4-L2R-20CG-GD (Coolermaster R4-L2R-20CG 120CM Green LED Case Fan 2000RPM 90CFM 19DBA 3/4 Pin - DirectCanada)

Zalman ZM-F3 (Zalman ZM-F3 120MM Sleeve Bearing Case Fan Black 900/1800RPM 20/34DBA 3PIN Connector - DirectCanada)

Scythe Slip Stream Kaze Jyuni 1200RPM (Scythe Slip Stream Kaze Jyuni 120MM Fan 1200RPM 68.5CFM 24DBA - DirectCanada)

Scythe Ultra Kaze 2000RPM (Scythe Ultra Kaze 120MM High Static Pressure Silent Fan 38MM 2000RPM 87.6CFM 32.9DBA - DirectCanada)

of these 4 fans, could someone is good experience and knowledge suggest me 4 for my case and the other 2 for my Mugen II cooler. what i'm looking for is performance with reasonable dba. if you have any better fans to suggest then go ahead but no more then 8CAD before tax for the fan.

[AkG]

r4s are hard to beat...but they are loud at 12v. Same goes for yate loons. sleeve fans are "meh". The slip streams make decent case fans. Might want to look at Geil's they have decent dba, decent cfm and some are cheap ;)

[Zero82z]

Slipstreams for the case, Ultra Kaze for the heatsink.