I'd like to find a portable HTML editor at least as capable as Coffee Free or 1st Page 2000. Syntax highlighting, HTML help, built-in preview plus call up preview in specified browsers, multi-file search and replace. WYSIWYG editing not required. CSS awareness required.
I don't like NVU. It makes changes in my code without telling me and doesn't seem to deal with local relative address links well.
-----Paul-----
Sounds more like you want a text editor than an html editor. Have you tried Notepad++? It has support for HTML and CSS built-in. For HTML/CSS help, use Firefox + one of those handy sidebar extensions for all the CSS or HTML rules. And you can launch Firefox from it for previews.
Built-in preview is *highly* overrated and should usually be avoided. Editors that have it usually just instantiate the local copy of IE (which, in a portable scenario is a total crapshoot)... and you shouldn't be coding to IE anyway. Start with standards (Firefox, Opera, Knoppix, etc) and then add in the IE cruft.
Sometimes, the impossible can become possible, if you're awesome!