The SMH has a report on a new cycleway proposed for Sydney's lower north shore called the "Harbourlink".

As someone who cycles through this area fairly regularly, I've got to say this is a great idea - there are some great cycle paths (multilane paths with an additional lane for pedestrians, completely separated from the road system) leading in towards North Sydney, but North Sydney itself is a traffic clogged obstacle for cyclists who want to head across the bridge into the CBD.