If you already are a website developer than you will know what your favorite tools are. Probably the most popular professional level website development software is Dreamweaver. If you are experienced its a good choice but if not then you should look at one of the other options.
Pros:
Ï rich functionality
Ï complete development environment Ï support from a major player in the industry
Cons:
Ï expensive
Ï steep learning curve