Okay, this is just in. Google has formally announced the "Google Pack" a 1-stop of collection of free to download software, that enhances and protects your PC.
The Google Pack, which requires Windows XP & Firefox 1.0+ or Internet Explorer 6.0+ to run, includes Google Earth - the 3D Earth browser, Picasa - photo organizer, Google Desktop - desktop companion, Google Toolbar for IE, Google Pack Screensaver, Ad-Aware - Anti-spyware, Norton Antivirus 2005 Special Edition & Adobe Reader 7 for PDF files.