Aerocool wouldn't put it, today I don't trust them. NOX is not a bad option.
I personally would put a Corsair TX650 V2, for me it has everything desirable: power, efficiency, silence, 5 years of direct warranty and all the recommended certificates. The only drawback I put is that it is not modular, although the same model exists in modular but more expensive.
The power that would suit you is between 600W and 650W, if it is within that range don't worry.More brands that you can look at within good quality and efficiency: OCZ, Silverstone, Be Quiet…
Regards
Well according to what you tell me and seeing my budget I'm going to get the NOX NX Series 620W. A fixed component to the list.
Thanks.