Freeway is a bit different than Dreamweaver. It's an HTML generator rather than an HTML editor, allowing it to be a lot more efficient and flexible in a lot of circumstances.
However, it is very much a one-stop solution, meaning your entire site will be a single Freeway document (although it is possible for you to split up a site into some smaller modules for different sections). If you're a one man operation, you'll probably find yourself more productive with it.
It'd help if you explained the angle you are approaching this from: are you a graphic designer, a web application coder, or what? What sort of sites are you looking at?
In any case, you can download a free 30-day trial from the web-site. I think you can download a trial of DWMX from the Macromedia site, too. Run through the basic tutorials in both, and see which you prefer. I think you'll find Freeway's learning curve much more friendly
(Disclaimer: I have an @softpress.com e-mail address)