Antec Solo + NOCTUA NF-B9 + Scythe Slip Stream - 12 cm
I am certain you will be pleased with the result. I forget, but I seem to remember that you picked a good PSU. If so, it will be your video card that will most likely generate the most noise.
If you want more quiet, that is where you will likely need to focus your early efforts. Some people play around with the video card bios to slow down and quiet the video card fans. You can also buy after market coolers for the video card that are both quieter and better cooling than stock.
You can opt on the Solo to either suspend your hard drives or install them in a conventional way. At that time you can determine how much you trust the solo suspension system (let me know if you agree with my underwear elastic analogy). You can go switch back and forth between these two types of mounts as you see fit, when you see fit.
If you use two NOCTUA NF-B9 front fans, you should be able to set it up so you have positive pressure in the case. That I am told keeps the dust levels down inside the case.
Get the 1200 rpm M version of the Slipstream. You can make it go pretty much any speed you would want by varying the voltage.
I recommend this to control the speed of the Slipstream and the front fans:http://www.performance-pcs.com/catalog/ ... s_id=25981
I like this because it is so reproducible. With those variable knob controls, you never know what you set it at the last time you used it. This allows you to experiment with different speeds with some precision.
One additional thought. You cooler is already coming with two Noctua 92mm fans. Just for variety sake, maybe you should try two 92MM Nexus fans... or two Scythe Gentle Typhoon fans. You can then experiment back and forth with them.
Notes on the Scythe Gentle Typhoon
a. the 120mm Scythe Gentle Typhoon fans are very flexible, the 1900rpm one goes down to I think 600 rpm. I would expect the 92mm are similar.
b. Also the GTs generate more static pressure than any of the others (good for CPU coolers) they must operate at higher RPMs than others to attain the same CFM.
c. Therefor when buying them I would error on the side of buying faster versions... you can always downvolt them to slower speeds if need be.