Hello. I was gifted an old P4 rig with an Asus P4P800 ATX motherboard. I wanted to set it up for my little brother but the case that was provided is kinda junky. It's an old Antec, nothing against Antec but there's not much ventilation. Are there cases sold today that I can install that Asus P4P800 in? If so can I get some recommendations? My budget is around $40.