I don't know where the new harbor will be located.

Yes rents are on the high side. I think we pay 50% more than what we did in the states before moving here for about the same size apartment. My wife's company provides a housing allowance though which was adjusted in such a way to cover reasonable accommodation. It is my understanding that most companies either provide staff compound or accommodations, or give an allowance for housing.

Water and electricity is not included in the rent for our flat, but other places may do it this way. Our water and electric together often total only 100QR per month, which seems very cheap to me.

I'm not sure what you mean by lunch snack, but fast food meals for example are anywhere from 14 to 18 riyals, so $3 to $5 US, which is comparable to in the states at least.

I'm sure prices are discussed elsewhere on this site, but I'd say groceries are a little more epensive than in the states (I realize this may be of no use to you as a comparison), gas is considerably cheaper, and beer is considerably more expensive :)

Car insurance must be handled by the individual, unless I suppose the vehicle is being used in a work capacity, then perhaps that is covered by the company.

Our health insurance is covered by my wife's company, so I don't really know what options are available otherwise.

Cheers