Apparently the 750GB and 1TB versions are are physically identical and only the firmware is different. So, with powers of deduction and curiosity, flashing the 1TB firmware to my 750GB would in fact enable the extra 250GB drive space. An interesting development to quote my friend. Obviously it can't be as simple as that. I presume Samsung have done something to not allow something as simple to be done, so I guess the remaining 250GB drive space is going to be faulty sectors or something of a defunct nature. Anyroad, I'm tempted to give this a shot in the mouth, yeah I could brick my brand new 750GB HDD but hey, for the interest of *cough* science, I'm willing to do so. So, to you my fellow TPU'ers if anyone has a 1TB Spinpoint, if they could be so kind as to upload the firmware, I'll reward you with a thanks and my results.