Shopping fever! Microsoft Windows 7, Office 2010 Products up to 20% discount

My pc is Windows seven (NOT Windows Vista, there's a difference!). I already have Microsoft Office 2010 Product Key but I heard that Workplace 2010 arrived out. I used to be just curious to understand if it had been really worth upgrading from Windows 7 Serial to 2010. Is there any new adjustments to Workplace 2010? Does Workplace 2010 have the Office button (from Office 2007)? What could be far better for me to do?