hi,
I phoned the Gib Lloyds a couple of weeks ago, they said you can't open a Gib A/C until you are resident there, but you can continue to use use UK A/Cs in Gib with no charges for cashpoints etc... Gib A/C checks anyway are cleared in the UK... hope this may help! As for charges, if you open a Gib A/C in same bank as your old UK one, its just a transfer between A/Cs, Gib remember is an "overseas part of the UK" ... It doesn't behave this way in reality, eg residence, health care, welfare benefits, defence costs....but where it suits them, it does....
Nick