I'm in this process now. I decided to start with an agent search, because they know much more about the business. And most agents are pretty quick to get back to you. I've heard from most within a month (some much sooner). If all the agents I query reject me, then I'll query publishers.
Agentquery.com is good for agents.
Writers Market (a publication) is good for publishers.
PS: Yokomsa, I actually live in Independence. Whenever I go to Barnes and Nobles I'm on the lookout for Jim. Of course, he might be a Borders, or even Amazon, kind of guy.