Hi Adam,
I have about 13 years experience designing circuit boards from prototypes to production. If you would like, send me an NDA and we can email about your project. I can provide you tips about manufacturability of your design and guidance on steps.
In addition to what 'Monk said, I believe on the 4pcb.com website they have a link to the Eagle website (freeware for EDA). Another vendor that you would really want to look at would be www.tech-etch.com