If your new to web design and a complete novice, and want to create your own sites , i would recommend you start by learning html and css, Most beginners start with a wysiwyg editor but then struggle when it goes wrong or they don't know what the next steps to take are ..
You need to know some basic stuff first, like div layout, do you know what a div is ?.. you will still need to know the basics even using a wysiwyg editor like Dreamweaver.
How will you know if you can place what div within a div within a container or whatever etc etc..
It's not just a case of putting something in a space and expecting Dreamweaver or what ever soft ware to do the rest.
My advise would be to start at w3schools (
http://www.w3schools.com/ ) where you can practice online as well as look at everything related to web design including html and css..
Take what you learn there and practice in Dreamweaver or what ever editor you are going to use.
If your looking for a quick site up time and very easy to use editing there is something called WordPress, this can be automatically installed on a site then edited from the admin area...
Check out WordPress.org, NOT dot com.. dot com is for blogs but dot org is for your site or business, there are theme templates you can install for free from WordPress where there are plenty .
Now i'm not saying WordPress is a snitch, it also has some learning but is very easy to pick up.