Cost Of Living For a Family of 3 (Husband, Wife & 3 Month's Child)

I am trying to find a job in Qatar but to make a good deal i want to ask that what is cost of living for a family of 3 (Myself, wife and 3 month's child). I not a man who wastes the money in luxuories and lives middle class life.
Can anyone tell me the average expenses on the following:

1-Accomodation (Studio or 1 Bedroom)
2-Grocery
3-Water, Electricity, Phone, Mobile, Gas, internet etc.
4-Transport (If i daily takes a taxi to my office and dont buy a car for the initial 6 months or so).
5-Outing and Eating (Once a week in an average place)
6-Any other cost?

Thanks