Design Logo

I want a logo designed for a small business I'm starting. I have a hand drawn conceptual sketch of what I want it to look like. I want it digitally re-created to a format that I can change color of structural shapes of it, and an end-image with quality of 300dpi and above. I'm open for suggestions and edit to my sketch. Looking for a initial price quote for the project. I will supply the sketch after awarding the project. Let me know of any questions.