I agree that i takes awhile to become a good developer, but you need teach yourself front end stuff at least. That's unless you already have a bunch of developer friends willing/wanting to be apart & turn your idea in a reality.

There are so many posts here and experiences (my own) where someone is looking to create an idea but they do not have the friends or the ooomph to convince others to join him/her to build their idea or start-up. If you fall into such category go out and learn html, css & photoshop and hire a developer. It will take you longer but you'll gain a skill, have better control of your vision and most important your idea will become a reality.