I'm looking for a computer case with good airflow with a budget at $50-70. My theme is black and red, but just black would work also. I was looking at two different cases the Corsair spec 03 and the Fractal Design Arc Midi R2 but I am not sure if they would be the best choice. I plan to take this computer to my friends house so it would have to be somewhat portable (last the trip there). If anyone can give me their opinion on the two cases I listed above or list some different options that would be greatly appreciated, thank you.