Custom Skin (Theme) Required

I run an on-line store that sells sample (or Sound ware) content to producers around the world. I am looking to revamp the design of the site and get better corporate identity in place. I am looking for the following changes to the site: 1. New colour/design scheme for all aspects of the store (except the admin panel); 2. New graphics to fit the theme; 3. New Logo for the site, banners, etc; 4. Improved contact form (cosmetic); 5. Some layout changes. I have some ideas in mind for the design that I can send to you for inspiration and guidance. I am very much after a sleek, minimal and clean website design. Not something over powered with graphics, advertisements, etc. I can put together a more further specification if required. The back-end (Admin) section of the site won't need skinning. Please post some examples of your previous work and specifically anything that fit's the kind of design I mentioned above, I am looking for someone capable of hard-coding CSS/XHTML that will pass W3C Markup Validation. Please don't contact me if you are using templates or WYSIWYG applications. Looking forward to finding a suitable designer!