Need Chatbox For My Site

Im looking for a developer who can build a custom shoutbox for my site. It should implement with my user database so that logged in users can chat. If a user isnt logged in then they cant post but they can view messages. Please dont bid if your complicated, If you want this job PM and let me know you can do it. Please dont send me a whole bunch of links i dont care what you worked on before if you can do the job you will get it after i talk to you. I prefer to award someone and pay after the work is complete so this is what i will do.