honestly I've tried so many $50-$100 cases for customers at work, and the only one I stick with anymore is the CoolerMaster HAF 212
It has /plenty/ of room for cable management, it's mid ATX, plenty of bays and the airflow is superb
I was running a phenom 965 and a radeon 7790 in it with stock coolers for almost a year and never once had an issue, you can also add I think 4-5 120mm fans in stock drilled holes if the 3 fans it comes with aren't enough.