Can anyone recommend software for web design?

The GIS Coordinator, where I work, wants to buy good, easy-to-use, gui based web design software. Since I’m not a programmer (by trade), my knowledge of this is very limited. The only software that came to mind was Dreamweaver. I’m sure there is better software available.

What’s the best software to use?

She uses Windows XP SP3 by the way :).

edit: I realize I could use Google to find out, but I want to know real reviews of software used by the Pros’; not a sales pitch review.

Thanks!