First things first, start getting your affairs in order. I've got some resources if you're interested. Send me an email at michelle@divorceyoung.com and I'll pass that info along. I'll have a website up soon with all of it, but in the mean time, I'll just email it over to you if you are interested.
There is a lot of information online to get you started too. Do some Google searches. Also, do some research on your local courthouses website. Mine had a tone of information that I found helpful and you will too. It also wouldn't hurt to schedule some consultations with attorneys. They will charge you, typically, for 30 minutes of their time or a reduced consultation rate. Also, try calling their offices or shooting them an email. Sometimes they will give you some legal advice for free if you are strapped for cash.