Quiet case fans for HTPC?

[urbanrider]

So I have this case: http://www.newegg.ca/Product/Product.aspx?Item=N82E16811112228
Which has 2 80mm and a 140mm fan in it, which I find a bit loud.

It has a SSD, IB i3, BR-Drive and a wireless card in the case with no graphics card.
The Lian Li site specs the fans out as listed bellow:

Spec. for 8cm 2-balls bearing DC Brush less fan :
1. Air Flow - 0.719m³ / min (25.4CFM)
2. Speed - 2200 rmp ± 10%
3. Acoustical Noise - 27.2dBA (Max. 28.56dBA)

Spec. for 14cm liquid state bearing DC Brush less fan :
1. Air Flow - 0.766m³ / min (63.08CFM)
2. Speed - 1000 rmp ± 10%
3. Acoustical Noise - 22.15dBA (Max. 28.8dBA)

Basically I'm looking to drop the noise as low as possible. Do I need three fans? Can I keep the 2 80mm or 1 80mm and the 140mm?

Also any recommendations for quieter fans would be appreciated! Ive been looking at the:

Cooler Master: http://www.newegg.ca/Product/Product.aspx?Item=N82E16835103078
SilentX: http://www.newegg.ca/Product/Product.aspx?Item=N82E16835226033

 

[anxiousinfusion]

Both Sharkoon and Silverstone have had "golf ball inspired" silent case fans that have worked out very well in my experience. They don't provide the same airflow as traditional fan blades, however.

Since you are only using one hard drive and it's an SSD, you might be able to get away with lowering the 140mm fan's RPM or disabling it entirely.