If you have yet to look at Microsoft Office 2007 then now is the time. My team and I have been busy up and down the country meeting partners of Microsoft and customers listening to what they like most about Office 2007 and let me tell you there is a lot to like.
I personally believe this is the most significant release of Office since Office 95. The user experience with the new user interface is amazing.
Take a look at this new site which provides a great overview and links to test drive or trial Office 2007.