Hi, I'm a mechanical and systems engineering student and I've been using the AutoCad 2012 provided by my university on my mac, and AutoCad 2010 in class (on a PC). I've found it a bit hard to get used to the mac version, but so far, I'm doing good. However, I've had several people tell me there are 'better' alternatives to AutoCad for 3D modeling. I'm sure there's plenty of people here with more experience than me, so I ask you, do you think there's a more efficient tool?