You would have to check with a given product (e.g., DW) whether it can import your old FP files and settings (assuming that's important to you). Then look at the feature list and what they are charging you for the privilege of using it, and make your choice.
If you want to do your entire site anyway with some sort of WYSIWYG HTML page editor, that's one thing. I wouldn't bother buying such a product for only one page -- feedback form-to-email libraries are a dime a dozen, with instructions on how to drop them in to an existing site. You will have to edit files to set up their configuration, so if that's too much for you, you may have no choice but to go with a page editor.