Dublin- infos please

Hi everyone,

We (me and my wife & a baby boy) live in Montréal for now. In a few months we’ll move to Dublin, Ireland. I will start a job as a nurse for about 30K per year. For the first few years (1, 2 we don’t know yet) my wife we’ll stay at home, so we’ll only have my income.
For that matter I’ll have a few questions regarding the living costs in Dublin:

1. Do you think that that salary will be sufficient for the three of us (for a few years)?
(We are not great spenders, we don’t go to restaurants and we can use the public transport with no problem.)

2. Which part of Dublin (city or county) will be safe and will also offer a rent under 900 Euros (for a 2 bedrooms apt.)? I’m really mixed with Dublin 1, 2,…8.
The best for us will be something close to the public transport (I wouldn’t mind 1 hour commute each way- I will work for St.James Hospital-if this is helpful for some suggestions).

Thanks to all of you for reading and maybe answering.