Thanks Scott. The bivanorak looks like an interesting piece of gear. Does all the extra get in the way when just walking around? I have a Snugpak poncho on the way. Kind of a poncho with arms that will go over a pack. For $40 it's worth a try.
If it is warm enough to hike in shorts during the day, then a poncho is all you need for raingear. That is except when a lot of wind is a possibility, you'll look like a clipper ship. From the end of May 'till the end of Sept in the Southern Highlands, a poncho is the ticket. Plenty of ventilation and it keeps your pack dry.