I tried MS Expressions and didn't see anything that Frontpage and Dreamweaver couldn't do. Yes, I use both Frontpage, Dreamweaver and code by hand when necessary

IMHO -Presently I don't have the need for MS Expression.. -I wished Microsoft just stayed with Frontpage. There are some functions in Frontpage as are so easy

that are a pain to do in Dreamweaver.
Someone new to building websites never using Frontpage or Dreamweaver.. Expression works.. IMO-nothing significant over Frontpage and Dreamweaver.