Well thank you Boris, I happened to be the "person at BB who doesnt have a clue" who is also currently a 700BT owner running a 2.5" HD with no issues and no need for an external power supply. There are a couple of factors that may account for the issues that ppl are having like the speed of the drive and the enclosure itself. While it is true that in most cases the need for an external power supply should not be required the actual design of the board the HD is coupled with may be limited and in some cases some companies supply a dual USB connector to supply the required power needed for their