Personally I use the Mozilla Composer [mozilla.org] (also known as Netscape Composer). It's a WYSIWYG, HTML, Tag and preview all in one. Plus there's the fact that the program itself is open-source...and that it comes with a free standards-complient open-source browser of course...;) Free, reasonably small download for basic features (you must download the browser with it...no choice in that) and if you have Netscape 6+, chances are you already have it :)
I taught an in-house class on Front Page Express to 12 of our employees when we built our Intranet. When trying to write the ciriculum, FPE left me cold. No real help screens what so ever. So I searched google and found a couple of odds and ends, and well each department has kept their sections up. So, either I am excellent teacher (hehehe), or I had exception students......NOT or FPE isn't so bad for beginners.
I developed a couple of PPT slide shows that helped, placed them on their desktops so they could refer to it when needed.