Jarin,
I just bought the same enclosure from newegg and it's great. Keeps the HD COOL with it's fan, couldn't imagine not having one since the HD gets very warm during extensive use.
For this particular casing, there are TWO firewire ports, one is 6 pin and the other a 4 pin. With purchase, they provide one firewire cable (4 pin to 6 pin)and one USB2 cable.
Good luck with your purchase!