Hi there. i've just been given the go ahead by my advisor to purchase a desktop PC for my office at school. Unfortunately, I've been a mac guy since the beginning, so I don't know much at all about the PC market. I'm a Mechanical engineering grad student, so I'll be using this PC for 3d CAD, Matlab/Simulink, and LabVIEW. I've been asked to find an appropriate PC and give an approximate price range for what I need. I kind of wish I had been given a price range and told to find an appropriate PC within that range, but my guess is anything under $1500 including monitor should be okay. Any suggestions for brands/processors or any input at all? Thanks a lot!