There is a really complimentary review of StarOffice and OpenOffice up. StarOffice is basically Sun’s version of OpenOffice with some extra proprietary goodies added (spellchecker, templates, etc.) and tech support. But essentially they are the same codebase.
I’ve been saying it in this space for a while now, but anyone needing basic office functionality should check out OpenOffice. It does everything I need, and many of those better than MS Office. At this point, I really hate working with MS Word.