Site Improvement with Copywriting Make-Over

I have a website that I truly need to give a make-over to. [login to view URL] Now, I don't want a lot of flash, but I do want it to look more professional and pull more sales. I believe that I could have more sales with better copywriting. I can provide the winner with each product that I'm selling (there are currently nine) so that he/she can write winning sales copy for me. I'm a new software creator, so I can't afford much yet, but I am looking for someone with a vision of a long-term working relationship that may be profitable in the future. Excellent English grammar and spelling is a must for this project.