If BMI or ASCAP can't do anything for you then you really are not trying to make any money in this game. If you license your music you can make money through licensing fees, and royalties. A lot of people don't get thier music in the position to be played on broadcast radio/TV and film because they failed to do the neccessary paperwork. Signing up with BMI or ASCAP is one of those things. Which PRO you sign with can make a difference as well. Some organizations are more active in some cities than in others, which means depending on where your "dart lands" you may not have as many networking oppotunities. Both organizations offer different benefits to thier members also. With BMI I have a comdata card that gets my royalties to me a lot quicker than waiting on the royalty check to get cut then mailed to you. Also it impresses the f@ck out of people when they see it. ASCAP used to get you discounts at GUitar Center, from what I've been told they don't anymore. BMI gives its members a decent discount at Dell. I got my laptop according to my specs for less than $600 and that included shipping. All because I was a member of the right PRO. Dont' throw darts think about it and make an educated decision. You can call any of these organizations up and speak to some one that can help you.
As an artist that creates both musics and lyrics you should definitely sign with a PRO. Once you sign with them you can license your music to TV,Radio, and film, even websites and you can become eligible for royalties, depending on the situation. You may not be eligible for royalties on all projects, but one thing is for sure you will never be eligible for those royalties if you never sign up with one. "It's like lotto, you got to be in it to win it."
Stop slingin Cds and get paid for real. License those beats.