So I am starting to university this fall, and my program (mechanical engineering) requires CAD. I currently have a laptop. ( Acer Aspire 5750 with i5 2.4 GHz processor, 6 gb DDR3 ram, and a shitty graphic card) Should I get a new desktop or would the laptop I have right now be enough to run CAD with an acceptable smoothness? If I should get a desktop, what system do you suggest that is under $600 and can run new games as well?