I use HTML-Kit as my HTML editor mostly because of a plug-in called Tidy (recently updated, fixing some bugs that have bothered me for years. The download is separate from HTML-Kit.). This plugin does an HTML syntax check and automatically brings, as much as possible, the HTML into compliance with the W3C standards.
While HTML-Kit is not designed to accommodate entire websites, it does a pretty good job of editing one page at a time and worked just fine with MovableType.
Now that I’m using WordPress, I see that it (WordPress) takes the output from HTML-Kit and inserts a <BR> tag at every line break. This does nasty things to the HTML. I found out how nasty when I imported my MT posts into WordPress. For now, you can take a look at some of the old posts that I imported from MT and see broken links and other strange artifacts caused by this behavior. If anyone has any ideas on how to do my editing in HTML-Kit and then copy the text into WordPress without having additional line breaks but in let me know.
I think the best thing to do is delete the MT posts and just link to the static files which MT created. As you may have noticed, I am a big fan of static files as they will always be there no matter what happens to the database itself (which is not the case with WordPress).
I’ve hand edited a few of the old pages but have decided that it’s not worth my time to go through the hundreds of old posts to correct these problems. If anyone knows of a good solution let me know. Otherwise, I’m going to eventually delete the imported posts and just link to the MT archives.