Why should I use something other than Parallels I am looking to use Master Genealogist on my Mac Pro with Parallels. Does anyone have experience using this program for Windows on a Mac? Any suggestions for a better setup than Parallels?
You might find an easier solution in Crossover because it doesn't require a complete instance of the Windows Operating System.  I don't know that Master Geneologist is tested, but it would be worth trying. The Codeweavers community is very helpful and supportive of new software packages.