The Inq has a review of new Microsoft Office 2007. From the summery:
It's hard to define, but the new office suite feels good and is comfortable to use. That said if your requirements don't stretch beyond the normal usage of the odd letter, a spreadsheet to balance your budget and some email then there isn't a lot to recommend forking over cash for Office 2007, when there are several free options out there are increasingly attractive and compatible with Office documents.

System Requirements:

=> 500MHz CPU
=> 256MB RAM
=> 2GB HDD space
=> CD/DVD drive
=> 1024x768 resolution display

Read rest of the review at theinquirer...