Freya - that is definitely true about the hours. Although there is all the extra stuff you can choose where you do it too. I know some teachers who love taking their stuff home and sitting in front of the tv while they correct or do planning. I don't get anything done at all with the kids around, and although my first class isn't until 9:30 I am at school at 7:30 on the days i work so I can do everything I need to do before they arrive, or I stay back as long as I can (usually til 5:30) to get it done so I don't have to take it home. Yes it is a long day but as you said it is all relative and it's not 3am and having to do things then. If you are super organised too it really helps!
My DHs work hours are pretty good and sometimes flexible (7:30-4:00) so if I stayed after school to get work done it wouldnt be a biggie. Dh is pretty good at helping with the kids so I could def get some alone time to do things.

Do you have to work full time initially as a new teacher? Im definately open to part time or casual work, we wont rely on my wage so its not essential I work full time, as a casual I could take breaks between stints if Dh is going to be away or what not.
Do you get preferences of grades and schools or does the Ed Dept just send you wherever?