AVG Anti Virus (Free Personal Edition) and Spybot Search & Destory instead of Symantec Norton Anti Virus and Ad Aware respectively. Zone Alarm Personal Firewall would have been another good addition. It remains to be seen why the latter were chosen instead of the former. Is it that they are far better or that the companies were easily ameanable to Google's proposal ?
And I wish Google Pack was also available on Windows 2000 ! :(
See here for my list of "Must Have Software".