nope. there is no friggin' way. Dreamweaver is an intransigent bastard when it comes to that. you can see my comments on the Adobe Help forums...
YOU CANNOT STOP DREAMWEAVER FROM TRYING TO UPLOAD DEPENDENT FILES.
the best thing i've managed is to indicate the files i don't want by setting the 'cloak' flag. 'cloak' doesn't actually work (seriously, Adobe? WTH?), but it does pop up a dialog that let's you say 'No to ALL'. quite frankly, it's a bloody joke, that...
as for a better RichText editor, do you mean a color-coding IDE? in addition to being a great editor period, Notepad++ also has an FTP plugin that is really great. if you want a standalone FTP client, can't do better than (Filezilla)[http://filezilla-project.org/]. and if you're balls-of-steel brave, willing to smash your way through the godawful uptake period, (Aptana Studio 3)[http://aptana.com/] is exquisite. just don't expect a lot of useful tutorials on getting this stonkblonker configured without a lot a head smashing, loud cursing and google-till-you-puke. once you do, however, it's pretty rockin'. but my fave is still Dreamweaver because of the wicked smart ability to load all the referenced files in the header. remember, it was designed for VISUAL development, so that's where it's focused. but it's the best damn IDE i know of for Wordpress, MooTools and Smarty.
anyway. there you go. whew
WR!