Office 2010 - Reasons to Upgrade
I've been also beta testing Office 2010, with especially heavy use of Excel and Word on serveral PCs. It also offers some great security checks. As a prior blog post note it was extensively code checked using fuzzers and over 1600 potential issues were corrected. Two thumbs up from me also :-)
Office 2010 - A Deep Dive
http://blogs.zdnet.com/Bott/?p=2042
QUOTE: Office 2010 is a surprisingly deep, thoughtfully designed, well-engineered collection of software programs. The more I dig, the more I like the small but useful touches that the Office design team has wrought. That’s not just my opinion, either. I’ve heard variations on that sentiment from dozens of correspondents, including a few who are Office skeptics. Much of the work in Office 2010 is cleanup and polishing, smoothing over rough edges, making common features work the same across apps, improving performance. In some striking ways, Office 2010 is to its predecessor as Windows 7 is to Windows Vista. And that’s not a bad thing.