Web User Interface Designer

I am in the process of building a web application. Unfortunately, I am not the best user interface designer. I am looking for someone who can work with me on an on-going basis who can take my mock-ups I am in the process of building a web application. Unfortunately, I am not the best user interface designer. I am looking for someone who can work with me on an on-going basis who can take my mock-ups and bring them to life on the web. Your task is not to wire it to the database or anything, but your tasks would be the follow...