MS Office Standard includes:
Word - word processing.
Excel - fully featured spreadsheet
Powerpoint - presentation package
Outlook - handles e-mail, contacts, calendar, to-do list etc.
From what you say, you only need Word and possibly a basic spreadsheet. In which case you would be better of woth MS Works which has Word, a spreadsheet and various other bits and bobs. And it's cheaper than Office.
Alternatively what about Open Office (free) click here