All about the fee. When that's settled, it won't take much time before he signs.
You seem pretty convinced agreeing personal terms won't be an issue. I'm not so sure.
He may try to use the interest from Inter in his advantage, but I reckon he's set on signing for us. He'll probably want around what Cabaye earns (pure assumption), and I can't see us denying him that.
He says that he shouldn't command that great a fee because he is a defender. You'd hope that thought would translate across to his basic wage as well.