No need for noisy active cooling. Just get this case: The Official Kodi Edition Raspberry Pi Case | Kodi | Open Source Home Theater Software it's nice and provides ample cooling, even when messing with HEVC (on hardware supported codecs the PI3 doesn't get hot).
Also that case is nice but is not sold every where.
active cooling is not necesarly noisy. If you take a small fan (3*3cm) just to make ar flow in the case everything will be good. My blueray disk player have such fan and I never heard it.
Also that case is nice but is not sold everywhere.