I did my D all alone, I did. Lawyers around here start at $2500 and go up rapidly. The county courthouse sold me a "DIY" kit--basically all the forms I needed (I also have kids, they're teens or older) as well as a set of very good instructions.
In my case, our separation and D was quite friendly...but then, my ex never deceived me at anytime during the marriage (23 years).
Be cautious though. Once you say something, it can't be unsaid.
Good luck!