Besides the obvious Open Office, there are several good alternatives:
1. staroffice: www.staroffice.com
(commerciele version of "open office" small price especially compared to offices - evaluation versions for free)
2. corel
(used to be wordperfect: far better than ms-office includes lotus dbase, not cheap)
3.
4. ms works
(still microsoft, but on most pc's for free and for suitable for most common office tasks)
4.