I'm building a budgeted gaming PC. My concerns are, since I went for a cheaper case and fan, will the performance be affected? It's better to have an aftermarket fan then the stock fan, but since I cheaped out, I'm afraid that the stock fan may perform better than the actual separate fan. Also, do all 3.5 inch hard drives fit all PC cases? http://pcpartpicker.com/p/2uZpK