07-06-2011, 11:11 PM
You might notice that that the next Mac OS X, named Lion, will be out in the next several days and has some VM features. Apple - OS X Lion - The world
Before Lion: There are three VM programs that are usable under the current OS X, Snow Leopard, Parallels, VMwareFusion, and the one from Sun. Some one volunteered to me that VMware Fusion had been doing the VM with Apple longer and felt it worked more smoothly. Not to say which would be best, as I am not an expert nor have I evaluated all of them. Just be aware that there is more than one VM program. VMware and Parallels are an extra cost. Which brings up the point. I have discovered that many times when I want accomplish something, it turns out someone has developed a really keen, smooth working program to do it, but it costs $$.
Just like you will have to have a legal copy of Windows to use in the VM program.
In VMwareFusion one must decide how much RAM to assign to the 'guest OS' in the virtual machine. If you want to use Windows in a Virtual machine, with a Windows program, then you might want to max out the RAM you get.
I see a note that Intuit, is not going to have a version for Lion. I am guessing that will not affect the Intuit software running in a Windows Virtual machine. Maybe someone who is now testing Lion could advise the OP before he spends any money.