Here's what google pack is all about :
Google Earth : View satellite pictures of earth, Zoom from space to street level.
Norton Security Scan : One of the best antivirus packages.
Google Desktop : Desktop Search application from google.
Mozilla Firefox with Google Toolbar : Safer browser with popup blocker.
Adobe Reader: View PDF files.
Skype : free voice, video calls & making cheap phone calls.
StarOffice : MSOffice Alternative
Google Toolbar for Internet Explorer : block pop-ups and autofill forms
Spyware Doctor Starter Edition : Detects and removes spyware, adware, trojans and keyloggers
Picasa : Find, edit, and share your photos in seconds
Google Photos Screensaver : Display photos from your PC and photo sharing sites
Google Talk: Google's own instant messenger.
RealPlayer : Play popular media formats, organize music and videos.
[ Update : Google Pack can no longer be downloaded as google has removed it from its page, however many of the tools can be downloaded individually ]