My last gaming/general computing build in late 2010 lasted me almost 7 years. Initially I wanted to put the build in the Corsair Carbide Series Air 240, but when it came time to fit the video card in, it just wasn't going to happen because of clearance issues with the GPU radiator and the motherboard because the top of the case was too low.
So I went back and redid my case research and lo and behold I found the H400i from NZXT. This case was perfect for my mATX build, and while it has a very different footprint from the Air 240 (it's basically just a mid tower), I could sense that it had the same simplicity and 'yes we thought of that' that most of the Air 240's features represented to me. Anyway, you will see a couple of parts in the initial 'box' picture that did not make it into the H400i because they were intended for the Air 240.
The build is pretty quiet (but not quite silent), fast, and cool. Some of my choices were probably overkill, but I don't mind too much - it's been a great build so far and I'm hoping it lasts me another 7 years.