So I currently own a Dell Inspiron 537s Desktop slimline. I would like to get some more ventilation and room for a bigger graphics card and better power supply in the computer. Is it going to be possible to upgrade to a microATX or Mid Tower? If so how difficult will it be? The motherboard is the Dell 0U880P, so I am not sure whether the screw holes are different than what a normal case would have. Also if you can recommend a good case that would be great. Thanks.