There should also be a browser preview mode, although in truth the only way to really test your pages is to view them in Netscape and Internet Explorer. Some editors let you preview in an external browser in this way without having to open the browser and go through the File, Open route. It's unlikely that you're going to be creating just one Web page, so the best tools have facilities to help you create a whole site. These range from simple maps which show how the open page links to other pages around it, to complex systems that log every file in the local site, and offer to change all references to that file if the original's name changes. Templates are also useful in this situation.
Websites tend to be tweaked as time goes on.
If you change the look of a site, you would previously have had to go through all the pages and make the slight tweak. Now you can simply change the template and all the files created from that template will change automatically. You never know how successful your site is going to be, so if you want to make a big splash, go for a product that lets you apply Dynamic HTML routines and even JavaScripts like button rollovers without having to delve too deeply into the code. If you are really ambitious, then a program that supports ASP, CFML and even WML will allow you to develop your talents further.