Again, I can't thank you all enough for all the help.
I see that some of you are thinking of going open-case style and whatnot, but since the beginning, my task was to make my PC look like a "sleeper". That's why I have decided to keep the case closed and not too flashy. The only thing that bothers me when it comes to looks is the fan on top but unfortunately, I cannot place it any other way than on the outside of the case itself (the RAM clamps interfere with the fan).
As far as the temperatures go, I have tested many different scenarios, fans on, off, intake, exhaust and all sorts of mumbo-jumbo with them and stress test after stress test, the current configuration yields the best results. Also, my computer was never really running hot, I just wanted it to run a little bit cooler. In-game temperatures for the GPU never go over 55 °C (see signature, Furmark: 67 °C) and the CPU never goes above 40 °C(AIDA only 35??) (also see signature).
Dust. Another issue quite a few of you are worried about. I live in a village, my house isn't that dusty and I'm totally fine if I clean my PC every 2 months or so. I know that winter is coming, we'll be heating the house and everything, and that of course means more dust, but I am not concerned about that at all. If the need arises, I will buy some dust filters and install them.
Also, a lot of time before I got to this many fans and all, I already had issues with vibrations caused by the fans. Solution? Well, you're gonna laugh but here goes: I put some double-sided thick duct tape between every fan and the case itself (a pad about 0,5 cm x 0,5 cm) where the screws go and I haven't had any vibration issues to date (I know anti-vibration bolts exist but "ain't nobody got time fo dat"
)
So what's left for me to do?
I'm definetly ditching the grills on the side-panel and bottom fans, the other ones must stay for reasons stated before. After that, maybe I'll just go clean everything up (I haven't cleaned it for a month by the way, see post #31) and take some more pictures
EDIT:
Comparing to what we've started with and what we've accomplished, I think we all did a great job. In the beginning, I never in my wildest dreams imagined, that this thread will reach such a huge amount of support and regular updates. You're the best!
Before (clickety-click on the image):
After (clickety-click on the image):
↑ And these are just the looks! ↑