Design for printed sign

I am having a billboard sign printed and need someone to create the design for me. Size: W 325cm x H 45cm The sign is split (vertically) into two equal parts, and each part will be a simple sign advertising a company. Two adverts in one sign. Generally speaking, each sign within a sign will comprise a background image, logo, text and some additional photos. All of this will be supplied to the successful bidder, but I need assistance in laying these out professionally and in an attractive and appealing way. Final output required is high-res PDF and EPS (exact size). This is a quick and easy job. I am looking for a designer with flair and natural creativity to help me make the sign really eye-catching and inviting.