I have been trying to get work for the past year, but I haven't gotten anywhere so I did research and found this Washington Post article that lists the best agents and how to submit easily to them. I just registered with 3 or 4 of them shortly before Christmas and Brian is listed in the article too. It also tells you about a few actors who just started out doing numerous extra jobs and it led to them doing many other things. Here is the link for the article:

http://www.washingtonpost.com/wp-dyn/content/article/2007/04/26/AR2007042602477.html