I don't know how you can find a good hacker, because there is no way for you to judge one. That aside, your best bet is to offer a lot of equity in the startup. More than half of the company. Your biggest selling point is that you will take care of all the stuff that annoys hackers - designing UI screens, marketing, face time with real users. If your idea is good, you offer more than 50% equity, and take care of the non technical work, you are providing a pretty good deal.
What you have to remember is that, as a non-hacker, you should feel lucky to be in the game at all. There are only two things startups REALLY need - money and hackers. If you don't bring one of those items, it's hard to make a case for being the major stakeholder.