Transferring Microsoft Office to a new computer is simplified greatly by the ability to download the software from the Office website directly to the new desktop or laptop. New variations of the ...
If you need to install Microsoft Office 2007 on a company computer other than the originally licensed machine, you can do it legally thanks to the terms of Microsoft's end-user license agreement.
I recall reading in the past that there's some sort of way to have Office installed on your personal computer if you're already licensed as a business user. So for example... your company pays for you ...