I know a lot of people put a lot of focus on their pictures because that's the thing that will be left when it's all done and over with BUT if you're looking for a cheap option contact your local high school photography teacher (if they have one) and see if there are any students who shoot people and are responsible/reliable. This suggestions actually came from my photography teacher back when I was in high school and one of the students did a few e-pics and weddings. If the student is wanting to enter photo contests they cannot receive payment for their services (most of the contests are for non-professionals) but, if they use film instead of digital, you would need to pay for that. Let them use your pictures in their portfolio or contest...and the teacher told us that if we could provide them with food for their services that would be nice too.
It doesn't hurt to look and I suggest having e-pics as a consultation.