I have seen a company called Stars or something that is an agency, but I can not remember where. I will have a think as I am sure they will have what you are looking for.
I think that the agency Sally mentioned is Stars in Bars. But as of yet they have not yet caught on to the fact that they can post on this sight for FREE. Must think there is a catch.
Not to sure if there is a local one but I have seen a few advertising on the other sites and I am sure they will travel