For years I have been using OpenOffice.org as my primary productivity tool. Word processing, databases, spreadsheets, presentations, PDF files and more are all done easily (and inexpensively).
It is easy to use, easy to learn and free of any strict licensing agreements. And also free for the price of a download. (If you can't download, I will gladly send a recent version on a CD along with other software).
A quick check saw that Office 2010 is retailing for $150. For anyone getting a new PC, please tell the salesman that you are going to save some bucks and get software that you can use on your new computer and your old computer and your neighbor's computer and ...
Yes, telling the world about FLOSS is my passion.