Work / Overseas Professional life in Poland - work in Warsaw or Poznan; living costs? [3]

Hi Everybody,

I've got recently a job offer from a multinational company to work in Warsaw or Poznan, and I would like to ask first about cost of living in those cities for a young couple (with budget around 2000 euros ), then I would like to know how is life for people with different culture & religion.

Thanks & Regards

Aidan