Don't take that case Corsaire 230T. I used to have and didn't like it and switched to NZXT h440. Also, if you take NZXT h440 you don't need to buy any extra fans. It already comes with good built in cooling and cable management in this case is amazing as you can see in the video I posted above. Also, the airflow is very good in this case and everything looks nice and neat and built quality is really good - it even has good sound insulation. I can't hear my PC running while it is under full Load. My fridge is louder at home than my PC.
Why do you need Network adapter??? The motherboard already has a built in 1GBit network card.
Also, why you switched GPU to Gigabyte. It would look nice to have MSI mobo and MSI GPU. They look great together. Well, anyways if you don't care about the looks then it's fine. But personally I really do care how my PC looks due to it has a window.
This is how it used to look with Corsair 230T case:
Attachment 25154Attachment 25155
And this is how it looks with NZXT h440 case now:
Attachment 25156Attachment 25157
Also, airflow improved with NZXT h440, I could mount water cooling radiator on the top, while in Corsair 230T I couldn't and cable management is so much better in NZXT H440 and in general it has more space inside.