I'm looking to talk to someone local to me who offers discount services or who knows of how to find doulas in training.
doulamatch.net is a good place to start. Many doulas list their fee and some who are just starting out have reduced fees? Where will you be having your baby, and what is your EDD? I know of a wonderful doula who is still somewhat reduced in her fees, she has a few births under her belt but is not charging what her full fee will be just yet.