I am not a designer, but I do handle many other aspects of web development. This includes setting up site templates, small design modifications, and content changes. I also work with designers and manage your project to completion.
Many designers are not well versed in setting up Wordpress, shopping carts, or other scripts that can power your site. It's crucial to have someone who can manage that side of the process, and integrate the design into the software.
If you have a designer, no problem - I can work with him/her to get your site implemented correctly.