Designer to create new web brand

We are looking for a freelance designer to help create a brand for a new web site. We have two different ideas already - domain names are registered - and need someone with the skills to implement these ideas and help us decide on the best way forward. No programming work is required. Please give a rough idea of cost for a set of web site templates and logo designs. I will supply the names and concepts for our proposed brands to a shortlist, and will ask you to give a brief description on which idea you prefer and how you might create the brand from this to choose the successful applicant.