What to expect while renting in Christchurch?

I'm looking into TradeMe Property to find the house for rent. In the pictures, some houses come with some furniture (such as bed, sofa, dining table, etc.) but I wonder if those are of the current tenant which will be moved along with him, or the house will come with those furniture for everyone renting that house. I know that I should talk to the property manager and may go and see the house itself to know how the house comes with. But I'm in too early stage to do that. I then come up with a question for anyone renting in Christchurch or have knowledge about it.

- Are most of the houses come with furniture as show in the pictures in property website?

- My office is on the suburb called Addington. Where should I live if I want to drive less than 20 mins to office?

- According to last question, what should be the rental price for a family of 3 (2 adults + 1 yo child)? I'm thinking of 400, 450, 500 pw. Are those reasonable? What should I get according to those budgets?