I am assuming from the point in your post that you are looking for a mac, "powerbook".
You will get OS X here in english and i am sure you can request one that doesnt have the arabic keyboard.
Best to buy it here because i do not think that a Mac international warranty will cover the middle east, besides that you will probably get it cheaper here.

I am trying to get hold of a mate of mine here who has bought one locally and i will update you with his comments as soon as the lazy boy has woken up.

CHave a good one!