Customize Zen Theme for Drupal 6

We are seeking an experienced Drupal coder. Website is about 6 very simple pages and includes a calendar. A simple design will be provided by a graphic designer. We need you to customize the CSS in the ZEN Theme for Drupal 6 to match the designer's work. The layout will be simple, and mostly text based. The homepage will be composed roughly of 60% graphic, 20% negative or white space, 20% text. More details will be provided to interested coders --- but please place an estimated bid now as an introduction.