It has been almost eight (8) years now Open Office 1.0 was released. And in that time the project has really matured and come into it’s own. Today they released the new version 3.2.
It has a bunch of new features (outlined here: 3.2 New Features. A couple of the bigger “new featuress” are: faster start up times; improved compatibility with open standard (ODF) and proprietary file formats, Support for Postscript based OpenType fonts, and new chart functionality.
This release (archived) is about 150mb. Probably more once I install and play with it at home.
Download link: download.openoffice.org