There are two software products I am aware of, Parallels and VmWare, that are important to this question.
They do not emulate windows. Instead, they provide an environment whereby you can install, for example, Windows XP Pro, or Vista. Then you can install wintel software. So you are actually running under windows, not Mac OSX.
There is also a company that is providing a dual boot system, so you can actually boot the Mac with a windows operating system. I have not checked into this yet, but what I have read indicates it is not as user friendly as Parallels or VmWare. It looks like if you boot as a PC, and want to run Mac software, you would have to reboot; same if you boot as a Mac and want to run pc software. With Parallels and VM ware, you can just go back and forth without rebooting.
If the documentation for VmWare and Parallels is correct (BIG IF), there should not be an issue regarding whether a configuration is supported other than whether the PC operating system you install is supported.
If anyone is out there who has tried this configuration, please enlighten the forum readers.