There is nothing that's "as good as Dreamweaver but cheaper." That's like saying there is something "as good as Photoshop but cheaper." Sure, there are packages of varying prices (including free) that cover some or many of the features of those top-end products, but you aren't going to find something for little or no money that does virtually everything a Dreamweaver or Photoshop does.
In any case, here
is a list of free HTML editors for Windows.