I was hesitant when I was invited as a CTO in a startup few years ago, but eventually I got in.

Finding someone willing to commit in exchange for promising isn't easy. The main thing is for you to be excited and passionate about your idea and meet technical experts who would be willing to join your venture. Also, have a good idea of the expected ETA for your revenue plan.

A good example is ABC's reality show "Shark Tank" - the sharks wouldn't invest in a business owner who is not dedicated enough, and occasionally they'll invest in a founder since they believe that he or she can take the product to the next level, even if it's not there yet.

You can join some startup communities or attend technical conferences, or check with your university/high school friends who got involved with the tech world.

The only thing I'd keep in mind is that if your idea is not proprietary and you don't have any competitive advantage (such as being a recognized marketing expert, have tons of contacts in your niche), your idea may be implemented by someone else, so make sure you're adding your bit on the table other than a good idea itself.

Let me know if you want us to discuss that further.