For anyone considering postgraduate study, I would highly recommend the programs at Charles Sturt University offered through IT Masters: IT MASTERS .
You can do a full MBA if you are a glutton for punishment. For me, as I work fulltime (and then some) as well as having a wife and two young kids, I found it too great a burden time wise to go beyond the graduate certificate (at least for now) so I only did the graduate certificate.
Details of what I did are here ( scroll down to the graduate certificate section) : Graduate Certificate in Management (Information Technology) . It was well worth doing and although it took me way out of my comfort zone, it was extremely valuable and I highly recommend it !