Here crazyjoekuta to help ya out and the rest of ya as well. 😉
According to zlooop, he wants a quiet case. I would recommend you to go with something that is not aluminum. The reason is that Aluminum cases are known to rattle or vibrate with the fans thus making a rather loud "hum" noise. 😉
The main thing for a quiet case is the fans. I would go with the Panaflo "L" series fans. The "L" denotes "low" noise, and the Panaflo has the quality and best dBa to cfm ratio possible. 😉 (IMHO 😉)
The next thing is to select a case that is your preferred size and style and of course in your budget. That is a user preference. I can only give suggestions on cases since I've worked with most cases out there. 😉
Any questions, just PM me, thanks! 😀 (Please don't use email since I'd rather my inbox to be uncluttered with help questions, but PM's are just fine. 😉 😀)