I don't know much about Macs but I have heard you can run any Windows-based program (aka "compatible" for those old enough to remember that expresssion) if you have BootCamp on your Mac. According to my Mac friends, you can have the best of all worlds if you have BootCamp.
Boot Camp is a way to make a Mac think it is an Intel machine.
Using Boot Camp you also have to buy and install Windows.
If you are not an experienced PC user this could give problems - like i.e. on a Mac you do not have a button to open the CD-drive but you do it on the keyboard and via the OS. When you are in the middle of a Windows installation you can not open the CD-drives any more :- )
There are also programs like Parallels etc. where you emulate a Windows environment. The emulation process, however, slows the machine down pretty much and is not recommendable for video editing.
This said, I do have a Mac Pro with Windows 7 Ultimate (could be installed without Boot Camp) and an iMac with Windows 7 under Boot Camp - so it can be done.
But it took several long days before it worked.