One could argue that Microsoft has too many iterations of their products--Home and Professional, Basic and Ultimate, Desktop and Server and Mobile and Tablet and Media Center and . . . and . . . and . . .
Still, they do, and sometimes you can get a perfectly good version of their software at a much better price just because it's a different version will largely the same capabilities.
So let me point you at Microsoft Office XP 2002 Standard for Students and Teachers, Retail Box for only $79.95 (as of this posting) . . . this offer won't last forever, so if you're interested, I suggest you hit it now. Because it'll be gone soon.
It ain't the only thing we've got for a good price, however. May I also point you at Microsoft Works 2006 OEM on DVD for only $37.95. Microsoft Works includes Word 2002, Microsoft Works 8.0, Money 2006 Standard, Digital Imaging Standard 2006, Encarta Encyclopedia Standard 2006, Streets & Trips Essentials 2006 . . .and Microsoft Works 8.0 by itself is a pretty robust application for productivity. This software does require a DVD-ROM to install, and is OEM. But I suggest you check it out.