Through no one else's fault but my own I managed to scrape a parked car with my own, my car was worse off, I have a scrape from above the rear left wheel arch, all the way along most of my back left passenger door. 
So roughly (hard without pictures?) how much would I be looking at to repair some paint damage on a Ford Focus?

So roughly (hard without pictures?) how much would I be looking at to repair some paint damage on a Ford Focus?