[MichiganMat]

5 years of use, virus free. I've never heard of anyone getting a virus either and Im in the industry.

If Solidworks/Autocad is not available, just run them Parallels, it'll be just as fast.

Getting used to the Mac interface takes a bit of time because its different from anything you've used before. Once you get the basics its really intuitive and way more powerful than the antiquated Toolbar/Start button.