I am seriously considering this option as well. I flat out will refuse pitocin or (heaven forbid) Cytotech or any "chemical" induction methods, but I am giving some deep thought to the epidural, at least towards the end.
With my c/sec, I didn't find my labor stalling at all once given an epidural. I had labored long and hard naturally, and I was getting "stuck" at around 5 cm. I was exhausted and in my case, sick as a dog as well, so the epidural allowed me to rest and I quickly dilated the rest of the way.
I'm not saying I will, and I'm not saying I won't. How's that for helpful?
But if there was one thing I learned from my first birth experience, it's that labor is not something you can control, you really have to flow with it. If I find myself too exhausted, or fighting my body too much, I will take the epidural. Quite frankly, my priority is to have a vaginal birth first and foremost. Intervention-free would be icing on the cake!