I am a very long time Mac user and I dual boot to Windows-7. Windows-7 is a very good O/S and the Internet explorer-10 puts the Safari to shame. I used AutoCad on the Mac and once I switch over to Windows, it's hard to go back. I speak the honest truth. I put Windows on a solid state drive to test Revit and it is very outstanding. Everything is very stable as Mountain Lion. I'm just loving it!
Boot-Camp is free. Try it out and you do nothing but watch Windows boot-up! There is only a few seconds to wait. If you want to go back to Mac O/S, just tell Windows to do it. ...and viola! Your in your Mac O/S.
For the price of Windows, you can have both worlds.