woooooo you might have just made my evening!  Muy bien, mucho gracias! :)  How would I go about porting it once I have my SIM, is there a guide hanging about somewhere?

Hi again, & thanks for the reply!  With the European SIM, do you mean it can only divert calls from my existing number, or can I actually fully port my existing number?  Because I intend on being rid of my UK based contract, so there won't be anywhere to divert calls from, if you see what I mean, so really I'd just like to be able to port my number over but I'm not sure if I can? :/  Thank you! :)