I have a similar question but the situation is flipped around. I am in Canada and going on exchange to Sweden in about a week. If I buy an unlocked gsm quad-band phone, and a SIM card from rogers/fido here, I assume I can buy pre-paid cards in Sweden and it will work.
So my question is how do I get/find out what my local Swedish phone number is? I want to get the phone/sim card here since it will be a bit more expensive to buy one there, but I obviously don't want a Canadian number.