Antec NSK 6580

Unlike smaller NSK cases, this case is large enough to house a standard ATX board (such as Gigabyte GA-MA78G-DS3H I'm using with it). The included 430W PSU is very quiet and has 80+ rating. Good cooling potential: the rear 120mm TriCool fan is supplied with the case and is also very quiet. The side panel has an air guide for the CPU with optional 80mm fan mounting at the base and there are two mounts for optional 92mm fans at the front. The case is relatively quiet even with the optional fans installed.