its really simple, you can make your own wordpress theme like others, if you know photoshop and basic about HTML/PHP, you can re-edit others theme, and make it yours, em webdesigner and sometimes my clients request for cheap website, i make der website in BLOGGER, and patch 10$ domain to blogger and made it static pages... ;)
Wordpress and Drupal .... mostly i hav seen WORDPRESS... its good CMS, for company or business style website, and other then that drupal is also good, but i will go wid wordpress, coz if your PHP developer you can make your own plugins and make changes in CMS ;)