Went through a divorce myself a couple years ago...
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My divorce was about as amicable as it could possibly have been - we only used one lawyer because we basically agreed on the property settlement (thankfully we didn't have kids) and my ex still calls and wishes me a happy birthday. Even with that, though, it still sucked.
Some others have said some of this but it doesn't hurt to repeat it.
1. Make sure every thing is in writing. The only thing my ex and I "fought" over (and I use that for lack of a better term) had to do with her car, which was in my name. We talked about dealing with it one way in person but when the first draft of the property settlement came from the attorney, it was handled differently. We were able to sort it out but not having things in writing can bite you in the ***.
2. Don't let emotion (either anger or sadness) get the better of you, especially when dealing with your soon-to-be ex or her attorney. Take time to think through decisions. I look back on plenty of things I wanted to do or say at the time and am thankful now that I didn't - they would have just made things worse. You will be much better off, both in the short term and in the long run, if you keep your cool.
3. On a related note, as others have said, don't give in on issues just because of out-dated notions of what the woman should get or what the man is responsible for. It's 2013, not 1950. Not sure how it is where you are but here in Louisiana, we hashed out the property settlement ourselves, the attorney typed it up and the judge basically rubber-stamped it. Again, I realize that is pretty unique. We were lucky in that we didn't have kids and really only had a house (which we were trying to sell anyway), some retirement accounts and a couple of cars to deal with.
4. Make sure you have some support for yourself in place, whether that's friends, family, a counselor, a priest, etc... It definitely helps to have someone who is completely unbiased - like a counselor or priest - to talk with. What happened with me (and happened with a friend of mine when he went through his divorce, as well) was that I felt great the first few months after my ex and I split. I felt like a weight had been lifted from my shoulders. Then, kind of out of nowhere, things went south and I dealt with a bout of depression for a while. And even with a good support system in place, it took me a while to get though it. Don't be afraid to say you need help.