PHP/CSS expert needed

We are looking for a PHP/CSS expert to play a central role in redesigning a successful, reputable, USA commercial site. Current site is PHP/MySQL with heavy use of database/query driven pages (URLs with query strings) and html tables. We want to use CSS to replace HTML tables, and overall improve SEO. Also interested in adopting a CMS (Drupal, possibly). We have some functionality in PHP/MySQL that will need to be carried forward. Your communication and prototyping skills will be key. Prefer U.S. domestic consultant/designer. Your job will be to provide us with a number of CSS design templates and to advise/consult in conversion of existing site to new design. Your job will NOT be to convert our thousands of webpages from old to new design. We are looking for creative genius, not production genius. Please post URLs of sites that exhibit your designs. Please quote a weekly rate. High probability of on-going projects after main design/conversion. I am looking for an individual (or two), not a company.