Are you talking about the Office 2000 suite, or Office XP (2002) suite? If you're talking about the XP suite, look at the chart at the bottom of
this page.
If you're talking about the older Office 2000 suite, here's a comparison:
Microsoft Office 2000 Standard comes with Word, Excel, Outlook, and PowerPoint.
Microsoft Office 2000 Pro comes with Word, Excel, Outlook, Publisher, Small Business Tools, Access, and PowerPoint.
Unless you need Microsoft Access to do database manipulation, stick with the Standard edition.