Check out freelancer.com and rentacoder.com. You have to be extremely detailed and agree on everything in advance. You could always put your idea up for a bid.

Check out freelancer.com and rentacoder.com. You have to be extremely detailed and agree on everything in advance. You could always put your idea up for a bid. If it's too high, pull it down. Another approach is to break your specs down to individual pieces. Then, start by outsourcing the smallest piece as a test.