Thanks for the comments, fellas. It's funny, I was looking forward to this for a long time and tried to prepare for any eventuality, but it's really simple to do and the reality is, that it's not that remote. There is plenty to see and do in both the Flinders and on the Oodnadatta, but Broken Hill didn't impress me much. I'd go back to the Flinders and do the other tracks, Birdsville and Strezlecki and the rest of Oodnadatta tomorrow, but in no hurry to go back to BH. So anyone who is thinking of doing it, just go. And don't forget to give the bird to all the snobby Cruiser drivers!
Just another tip - each night when I climbed into the swag, I took 5-10 minutes to record the day in Notes on my iPhone. Really simple way of remembering the trip and then you can remember where the bloody hell you were when you took a photo.