You could check with the Art Dept at your local college. Many college students are always looking to make extra money and those who are Art majors would most likely help you a lot cheaper than a "professional" artist.
You can also post on Craigslist to find someone in your area ... and maybe barter services rather than pay ?????
I am an artist, but it would depend on what you want drawn. I have sample work here: http://www.morganmedia.us/michellemorgansamples.html and I would run it through my etsy shop here: http://mommytails.etsy.com