I use VMWare Fusion to run Windows XP, a bit behind the curve. Fusion is optimized to run with the latest Windows Vista, 7, 8.
Maybe I have been missing out but to my knowledge TurboTax Business has never run on the Mac. I have always had to use it in emulation. Additionally I do not believe your Mac based QB file will import into TurboTax. I have always had to enter figures in the interview process based on reports.
However, I am not an accountant or on the latest version of QB, this may have changed. Intuit's inconsistent support of the MAC platform is frustrating at best but still the best app going for business, IMO.
