>>"I'm considering an offer to take and would like to know when I may expect some decision regarding this position."
>>
>>I don't see anything wrong with that.
>
>The moment they read that, they'll assume that you are trying to pressure them by telling them that they are not the only fish in the sea. And that if they aren't quick about it, they'll lose you. Not a good idea.

Well, it depends on how do you write that letter.

But essentially there should be some way to find out the chances. Because the decision requies lots of complicated steps to make, such as moving, finding a place to live, etc.