Not to pile on, you've received very good advice from the above. Depends on how long you are going to be here, I think. If you are a contractor still paid by a US company and your pay goes right into US bank probably don't need to change. But if you are paid by a local/Qatar based co. they won't direct deposit to US bank (I don't think). Plus if you're going to rent an apt or buy a car you'll probably need local bank.

Keep your US account open for transfers back home and for emergency access to cash when things go wrong - as they inevitably do - for short periods with you Qatar acct.

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A wise young crackpot knows no fear - Ian Dury.