Illustrator and Photoshop are image editors of sorts. Illustrator is vector based and Photoshop is pixel based, however they are both used heavily to create professional graphics. If you're looking for something simpler to design websites (and communicate your ideas to a programmer, Dreamweaver is great because you can design and then switch to code view to provide your code/ additional files. For simpler means, try Microsoft Expression Web, but there are many more programs out there. Adobe is first in it's class though for professionalism and interoperability with other Adobe products. They set the standard continually.