We are moving to Doha later this year, Dh has been tworking here already, since Nov last yr.
The main concern for anyone with children is school places - I'm assuming you're going to Doha? However your children are older and this may not be such a problem, we've found getting a place for our 8yo was easy, but our 5yo was much harder.
However you also don't have as much choice with older children, either Doha College or Sherborne which is adding the older yrs to the school as it become established, or the American School which is terrifically expensive (compared to all the other schools).
And thats the next thing to think about - ensuring that your husbands salary package adequately covers school, housing, transport, entertainment fees, etc.
But generally the school you get into determines where you live. And you have to be able to drive to get around. There is no public transport.
Other than that we're looking forward to it. I recommend at least one visit to get acquainted with the place prior to moving. And that its a reasonably progressive place, that is growing and changing quickly but probably like Dubai was, 5 yrs ago... I can help if you have more specific questions. Where are you coming from?