Hi.
Yes she will be working for Auckland District Health Board (ADHB).
ADHB is made up of Auckland City Hospital, Starship Childrens Hospital, Greenlane Clinical Centre. The DHB means all services in the Auckland Region are covered by one board of directors. New Zealand is made up of many DHB's. For example there are three DHB's within the Auckland region.
As for Auckland, im not sure how much you already know. Auckland City Hospital is the major hospital in the Auckland region for most of the specialities. (Burns and plastic surgery go to Middlemore Hospital). The hospital is new (i think it was rebuilt approx 5 years ago) and therefore a nice place to work. It has views overlooking AUckland City and the Hauraki Gulf made up of many islands. Very pretty!
I think the biggest negative about working at Auckland City Hospital is the parking but saying that there are many flats nearby and buses (sometimes frustrating) are caught by lots of people. I think if you live in Auckland it is essential that you have a car.
I would suggest living really close to the hospital in Grafton (literally across the road from the hospital-lots of flats around there but are more expensive) or in Parnell (just down the road, pretty much in central city, lots of apartments and flats). Or another nice area to live is in Ponsonby/ Grey Lynn.
I live on the North Shore of AUckland and travel time is 20mins drive in off peak traffic (which you get when working shift work). So to start a 7am shift i leave at 6.20am. Many people who work at AUckland and who want to live on the North Shore choose to live in Northcote as it is very quick to get on the motorway (about 10mins to the hospital)
Where you decide to live in AUckland will depend on the lifestyle that you want. I love the beaches so i love living on the shore. If you are more of a bush person you might choose to live West of the main City. Then saying that AUckland is a pretty small place so everywhere is within an hours drive of everywhere else. Its a great city to live in- lots of exploring to do. You will never get bored if you like exploring bush/ocean/walks.
There are lots of websites to find places to rent. Check out
www.trademe.co.nz (its like NZ version of your ebay.also has a flatmates and houses for rent section)
http://www.nzflatmates.co.nz/
http://www.flatfinder.co.nz/
Those are just a few. If you google there are many more sites for these purposes.
If you have any more questions let me know! Im sure there are many more Aucklanders out there who can help answer too!