How do I startup if I'm not a developer?
noodle: 1) do not use rentacoder, elance, or similar services.  you get what you pay for.  if you're looking for help, look around the established developer communities.  HN is a good start.  i also like the job board at freelanceswitch.  there are others.2) Q:"What's to stop the coder from just taking the finished product and running?" 
A: a contract3) my suggestion would be to hire a freelancer or a development company and pay them their rate, and if you like their work, consider offering them an equity bonus to sign on full-time.p.s. your website doesn't do anything.  you should fix that ;)