Well, I understand. You'll be looking at the case for a long time. The features you want are large 120mm fans front, top and rear. It's nice if you can get the psu on the bottom. Rubber grommets for cable management are also a plus. Try to get a mid tower or larger as the best gpus tend to be bigger. Also larger is better airflow but full tower is NOT necessary. Find something in your budget with those type of features and you will usually end up with a case that will serve you well. Try to read reviews that mention flimsy metals used or not so you can go for something that will last. Best of luck! Again, have fun with it!
Thanks,
Justin S.