I really like a case with a slightly less conventional form factor, particularly PSU mounting options - tall cases aren't my style, but I'd rather not take up too much footprint area either. Strong cable management options round the back are very important to me as well, plus a clean and sharp visual appearance. I'm willing to sacrifice some airflow for appearance and possible more importantly silence, as I don't run the highest end hardware at the top of its capabilities. A PWM fan controller hub behind the scenes would be a nice bonus.