I use EditPlus 2. It lets me see all the code for my XHTML, CSS, and PHP completely colored so it's easier to keep track of, and since I'm doing all the coding I know there aren't extra tags stuck in there by the program I'm using (a la Frontpage).

I don't know about Dreamweaver because after taking a look at Frontpage I swore off all WYSIWYG editors. It's just so much cleaner to do it all yourself.

I only use tables for tabular data (as recommended by the W3C standards). And yes, if someone tries using tableless layouts and has no idea what they're doing, you can see it in the code.

So basically, learn the tags, learn how to use div's and tables appropriately, and learn how to style with CSS and you'll always be on the right track.

And a general note to all: just because you use a tableless layout, doesn't mean it has to be dull and ugly.