$600,000 in medical bills......need some guidance.?

I have accrued a $600,000 medical debt due to a serious car accident that almost resulted in my early demise. Unfortunately at the time of the accident, I didn't have medical insurance (hence the enormous amount). I am seriously considering filing for chapter 7 bankruptcy because there is no way in hell that I am ever going to be able to pay this off. Presently I am without a job nor do I have any ets to speak of......basically I have jack squat! Can anyone please give me some suggestions as to how to approach this dire situation? It would be greatly appreciated.