This is a great idea, there is always need for help in the start up world especially with getting the income going. Great ideas are a dime a dozen but ideas that pay are not so common. Check out 1 Million Cups and go to a meeting if there is one in your city. You will find lots of entrepreneurs in need at those meetings.
Another suggestion I would have is that you look into the undeveloped part of the world. There are a lot of motivated people that simply do not understand the American way of doing business, they have great ideas that could make money but they lack know how on how to implement them and conceptualize scaling for their business. You can also become the bridge between them and the American market. Take advantage of the global economy we live in :)
Perfect!