op, did exactly that about a month ago(bhp/nab to gbg),thought there was more chance of gbg going to $2+ in the short term than bhp to $90/nab to $60.If i knew for sure that the karara magnetite deposit would "almost double that resource base to a targeted 2.2-2.8 billion tonnes by june 30 2008" (From Gindalbie Update April 08)i'd
do it again even at the current sp.
cheers c