I have an Antec p180 case, which I have been very happy with. But now it has become too small, so I need to find a new case. I would like my new case to be quiet as well, but I have no idea which case to buy. Does anyone have any suggestions? My old case is 21.3"(H) x 19.9"(D) x 8.1"(W) , so the new one has to be bigger than that.