I was looking to upgrade my case for my prebuilt HP desktop. The stock one is just terrible, especially after upgrading the power supply and graphics card. I remember reading somewhere that it would be difficult to replace a case for a HP desktop. I was wondering if it actually is possible to change the case. Again I have the HP Pavilion p6240f. Sorry if this sounds like a stupid question, I'm not exactly "all-knowing" in this field. Thanks a lot!