Free Software for Experienced Designers
Some of us find it incredibly boring to work with some programs, but yes we all have to start somewhere and the previously mentioned web design software is great, as I have used it myself as well. The more experienced web designers however would find a powerful programming editor such as PSPad more challenging and with a pile of interesting web design features. What I love about it is the fact that it is incredibly challenging and if you go to their website, pspad.com, they will tell you that it is easy to use, but that is not the case.
What is true is that it is completely free to use, which is awesome, but yes, you will have to know a lot about coding languages and the end result is supreme. If you know coding you will appreciate the matching bracket highlighter, search files, replace across all files, auto correction, CSS editing, syntax highlighter and so much more. This software has an FTP client that gives you the power to edit any files directly on its server.
Another one I suggest you try next time you want to design a powerful, impressive website is kompozer.net. It has a lengthy feature list and reliable code and one of the popular HTML editors that many professional wed designers use. What I like about it personally is that it is one of those that can be used when you have less experience too as it has free templates just to get you started.