Work / Software Engineer in Wroclaw. Reasonable salary for this position? [16]

Merged: Salary in Wroclaw - IT architect position

I have been offered a salary of around 9500 PLN gross/monthly , + housing allowance of 2000 PLN/monthly gross , for IT architect position

Will it be good enough for a family ( Wife ,3 year old Kid and me ) or should i negotiate more with my employer

Can some body tell me please the cost of living for a family in Wroclaw