The other design factor aside from the text is the imagery that you can use. Many of the newsletter templates will come equipped with basic clip art or graphics. Others will include areas where you can paste in your own graphs, photographs, or other graphic items that help round out the information. It's important to remember that the first thing that people often look at, even before the headlines, are the images, so make sure that they are strong ones that are eye_catching. Color newsletters also tend to be more appealing than those in black and white, though they can cost a bit more to print.
The first time you make a WordPress site it may be a bit tricky for you. If you are not very well versed in PHP and MySQL this site can be all but downright confusing to you. Taking it slow and learning to tap into the functionality of WordPress is ideal however and will immensely benefit you in future sites, therefore you should really consider tapping into it for one site at least to see how it benefits you.