For anyone who is somehow involved in a Office 2010 deployment planning I strongly recommend reading the Planning Guide for Microsoft Office 2010. Microsoft just released an updated version. Don’t be shocked, the document counts 458 pages, but does contain a lot of useful and interesting information.
And in case you aren’t aware already about the KMS requirements for Office 2010, read the Office 2010 KMS Server Requirements blog post, I mention this often when speaking about Windows 7, Office 2010 and KMS, and it keeps being a big surprise.