email blast for sports gamblers

Hi, I need somebody who can find a reputable company that does bulk e-mails, and has a list of sports gamblers. My budget is only five hundred so you need to do a little research. I can also buy a list of e-mails and send them out myself. As a matter of fact, I would rather do it that way. But it has to be a list of people who are interested in recieving e-mails about sports gambling. Time is running out and I need the list today. Thank You,