The nice people at WebAssist.com are letting me try out their new CSS Menu Writer extension for Dreamweaver. I got a demonstration of it yesterday, and I've been putting it though it's paces this morning. It is exactly what the title would suggest, a CSS menu writer. Working through four tabbed menus, you can easily create fairly complex, and valid CSS menus. I'm very impressed with it so far. The extension works well, and is quite intuitive.