Compared to 2000, 2003 doesn't really add much to Office, that really if why I'm reluctant to update office 97, it does all that I need.
The biggest problem with office suites is that 80% of the people only use 20% of the functionality.
Then to sell more copies MS has to come up with some more bells and whistles, whilst the underlying word and excel do the same, just in a prettier environment.