A good CMS will: Advantages: Disadvantages:
You may be better off with a good CMS.
1) keep your content and design separate;
2) have a wealth of existing themes/designs/templates that you can use immediately without modification or as a starting point for a custom design;
3) have plenty of plugins (to make the site more useful to users and easier for you to manage);
4) have WYSIWYG editing of pages/posts with automated syndication, and;
6) be XHTML and CSS standards compliant out of the box.
1) Let's you focus on content.
2) Easier to edit content and design.
3) Saves you time (in the long run).
1) Short-term time investment (to set up and learn new CMS).
2) Slight monetary investment (if you decide to hire someone to set it up and customize it for you).
A good CMS will: