Starting a CPA program

Sorry if this is the wrong forum to post this in. I don't have much experience with cpa. I was thinking about offering incentives for people who get targetted leads signing up on a site i run and completing an online profile. In short, running a pretty standard cpa offer. Didn't know how to go about this or what types of payouts are standard for these types of offers. I have a strong niche market and know how to get to the people in my market. So targetting potential users of the service and having access to them isn't hard at all. Even have a 60,000+ email list (not opt in) that i'm looking to have used to promote the service. It's just that i don't have the time to promote the service as much as i'd like to, but i certainly wouldn't mind rewarding others for doing this for me. Any ideas?