Coding Software?

Depends on what your goals are.

If you want to actually learn what you're doing and why each part of your code works the way it does (which I strongly recommend), then go with a basic HTML editor like Notepad++ or Netbeans (both are great -- it's just a matter of personal preference). Also, a lot of guys swear by Sublime Text.

If you care less about learning "what's going on under the hood" (which I don't recommend, because it will severely limit your ability to troubleshoot code and solve problems), then Dreamweaver is not a bad choice. It's got a massive learning curve though, because it has a gazillion different features.

A good analogy... using Dreamweaver would be like trying to learn auto repair by simply watching videos of a mechanic work on a car. You might learn a little bit about how cars work, but at the end of the day, your "real world" auto repair skills would still be pretty limited. Conversely, using a more basic HTML editor (like Notepad++, etc), would be like learning auto repair by actually rolling up your sleeves and doing the auto repair yourself, with a mechanic right next to you guiding you each step of the way and making sure you fully understand what you're doing.

Knowing not only why something works, but also how it works, is going to be very beneficial to you as a coder.

My 2 cents.