I usually use either Open Office 3 or Microsoft Office X, but this is ideal for everyday use without all the bells and whistles, it opens up fast, is very easy to use.. and it's only a 3.1 mb download.Bean is a small, easy-to-use word processor (or more precisely, a rich text editor), designed to make writing convenient, efficient and comfortable. Bean is Open Source, fully Cocoa, and is available free of charge! MS Word, OpenOffice, etc. try to be all things to all people. But sometimes you just want the right tool for the job. That is Bean's niche.
If you haven't tried it give it a whirl
On an other occasion someone sent me .wps documents (Microsoft Works) the only Mac writer I know that can open these is Neo Office.