I just bought a MBP in the US. Obviously the adapter has a US style plug in it (two pin). That plug detaches from the main adapter unit, meaning it can be interchangeable with other plugs from other countries. Is it possible to get a UK plug that would just slot into the main adapter unit? I don't want to spend 60 pounds on buying a whole new 85w magsafe adapter unit for the UK. Any links? Many thanks!