CSS design to existing web page

I have a dating website that needs a new design. Design should be professional and semi-minimalistic, and it must conform to w3c standards. The website is under development at the time being, and therefore we will take some time deciding which designer will assigned this task. This job will also include designing graphics to some extent, but we prefer that eventual graphics usage will be kept to a minimum. Due to previous experience with foreign developers, bids made by developers from India and asian countries will not be considered.