Morgan Keegan is expected to be valued at about $1.2 billion, including a $250 million cash dividend that the brokerage will pay Regions prior to a sale. Regions bought Morgan Keegan in 2001 for $789 million.  A deal had not been reached late Monday, but people familiar with the situation said final terms were being negotiated and a sale could be announced this week. Talks could, however, still fall apart. Officials at the companies involved either declined to comment or could not be reached for comment.  For more info, [Reuters 1/10/12]