The new version of Microsoft Office is a major shift. The addition of a menu ribbon is new to the Windows platform. There is something like it in Word for the Mac, but it's not called the same thing. ComputerWorld has written an article that describes the tricks to learning Word 2007. Normally, I tell people to hold off on new versions of software, but everything I've read indicates the new version of Office is worth looking at sooner rather than later. Do remember that the new file format is not compatible with older versions of Word unless the recipient downloads a free file converter. You can also save in an older version of Word. In any case, you should be testing out the new version on your personal system so that you are ready to roll it out to your users.