Here are photos of two mid-week lighties visiting Wellington. The first is a Cessna R182. ZK-ETX is registered to Professional Colour Laboratories Ltd - no idea where in the country though.
The second is a little more exotic. G-SEEK is a Cessna T210N registered to a Shelford, Cambridge, UK address. I seem to recall that it is tripping around the world, although it seems to have been in New Zealand for a while now. If anyone has more details, please leave a comment :-)
Thank you to Chris for these photos!