want to buy the above (well, not really want to, more "got to")
have they changed it recently? It seems like you can only buy it on yearly/monthly subscription? Surely that can't be right?
Are you sure that you actually need Microsoft Office? Many public bodies (such as Government offices and police forces) ceased using it years ago. The most popular free alternative (by far) is Apache OpenOffice:
https://www.openoffice.org/
All three of those office suites can open and edit documents in Microsoft Office formats. They can also save into Microsoft Office formats but, unless you change the default settings (which use their own proprietary formats), you need to remember to use 'Save as', rather than 'Save'. However changing the default settings (so that documents are automatically saved into Microsoft Office formats) isn't difficult. Here's how to do it in Apache OpenOffice:
http://helpdeskgeek.com/office-tips/set-openof%EF%AC%81ce-org-to-save-in-microsoft-of%EF%AC%81ce-format-by-default/
Well my lot must be well behind the times as we've just been upgraded to Office 2010. Have you asked your employers if you can get a reduced rate by the way?