Singapore vs Poland (Warsaw) for an IT professional

Hi,
I am an Indian IT professional working at Singapore currently.  I would be expected to move Warsaw Poland from Singapore, of course with a job in hand with an International bank offering Gross salary around 14k/month, So I believe its end up with around nett 10K/month, based on what I explore . Although, I been offered 25%  less salary from here. But at the same time I love the European whether conditions as compare to Singapore, as I been in Ireland four years back.
However, I need an advice whether it's a right move or not under following parameters.

1.    How secure Warsaw is ?
2.    IT opportunities
3.    Dependent can work ? She also an IT professional.
4.    What's the option to settle in Poland. like PR or citizenship and how much time it will take.
5.    Option or Ease to secure jobs in other EU countries.

What would be the aprox. expenditure:

1.    Flat/House Rent (2 bedroom)
2.    Utility
3.    Medical expensive or cheap ? (In Singapore its quite expensive. Single GP visit cost S$50-60)
4.    Child Education ( International School )

You advice will help me to take correct decision on time.