Revegitator
My tip have a look at the nice lawns on the new houses in your area especially in the shade and go with that-most likely it will be Sir Walter, its your money spend it safely.
Good point Revegitator, for anyone who has never had a buffalo lawn (eg vic tas sa) go and have a look at Sir Walter before you drop your 11 bucks a metre. Don't rely on the pics from the SW website.