J.S.
I just finished my first novel myself. Luckily I have someone that I knew that is trying to get her foot in the door as an editor and she is handling that aspect for me. If you are interested in using her I can try and get her in touch with you. I myself, am looking for an agent, and this website http://aaronline.org/bylaws has a great list of agents that also list the genres they represent and what their submission requirements are. You will need to prep a query letter and the link listed below was really helpful to me on getting a start on doing this.
Note, I am really not sure if a book should be edited before you send it off, chances are if I am picked up they will send it to another editor of their choice. However, I don't think it could hurt to have a super polished book. I am a great storyteller, but not an English major so I am sure I need a little work!
http://www.sfwa.org/2005/01/the-complete-nobodys-guide-to...