By reading your post I assume that the Bitfenix cases are not for my case. What about the Lian-Li and the SG10?
The Bitfenix mATX cases are too cramped for your system.
The Lian Li V355 can work if you can squeeze the tower cooler next to the PSU. If it works it'll be very tight, if not you'll need a new CPU cooler. The case only has a small intake grate in the front and I think it won't have enough airflow for your system.
The Lian Li PC-V354 has the same problem with the PSU obstructing CPU coolers. Lian Li PC-V353 has better airflow, but also a devider that limits CPU cooler height to ~100mm. If you want to get a Lian Li cube I recommend this model.
The Silverstone works with your components. The included fans are far too loud even for non silent systems. Besides the slim optical you'll definately need different fans for quiet operation. I think the Silverstone SG9/SG10 look like prototypes brought to market if not unfinished than certainly unpolished.
Here's another thought, if you wanted the smallest possible system with enough airflow you could buy a Silverstone SG03
/SG04 and a watercooler like the Antec 620.
If you want to spend less money and keep all your components you could get a small tower like the Coolermaster N200
or Coolermaster Silencio 352M
The AeroCool DS seems intersting, do you know who will retail it? or how much will it cost?
MSPR is 70€, two etailers list November availabilty.