BELIEVE ME, you are going to need an image editor if you engage in building a website. Images are some of the hardest things to work with in terms of making them do what you want on the page. There are free ones available, but Photoshop Elements gives you a simple editor mode to help you do exactly what you want.
Must Have Plugins
If you're not familiar with plugins, they add functionality to your website. They allow you to do things on the site that don't come with the basic website outlay. Or they allow you to enhance some things that are already there. There are over 45,000 plugins available for WordPress, but this is a list of plugins that you MUST use if you are going to make your website do what you want it to do!