look at some of the new egg videos. what your looking for is the size of the case and how the vendor set the case up..ie gaming or just cheap. good set up (nxzt) you pay a $$$ but there already set up for cable managment and fan controlling. larger cases are easier to work on (more room). some have colored led and lets you change the colors of the led or turn them off. some are made for longer video cards and aftermarket heat sinks. some have more then just audio and usb on the front of the case. good cases last a long time and can be reused. make sure you dont go cheap on the power supply. cheap ones can fail or burn up.