The case is a GIGABYTE GZ-KF03B Black SGCC ATX Mid Tower Computer Case. It was pretty cheap. I just installed a SickleFlow 120mm case fan on the side by the gpu. I'm also using a 90mm fan for exhaust near the cpu in the rear of the case.
The card hits 70C under stress testing benchmarks, but crashes have never occurred during tests like Kombustor or Furmark.