Thanks so much for this. I've not tried Galaxo yet despite having my Galaxy for months, but this should make it much easier. I haven't really understood what to do (or even exactly what Galaxo, Recovery, etc all do).
I have been afraid to ask for a guide like this as I know someone would go "read the FAQ". I'm not a newb with the phone or computers, I just find some of this Android stuff a bit confusing.