Any help with this question would be great. Last trip to Montreal I used my Sprint phone to make calls back home to the wifey and to agencies as well as to snap photos of stuff in shops to send to the wife for approval before buying. I nearly had a heart attack when I got the bill for those calls. I'm not particularly looking to hide or disguise anything, although the answer to my question should help those who are.
I've got a couple of unlocked quad-band GSM phones we use when traveling to Mexico. Can't use them at home since there's no GSM service around here, so I have no interest in setting up an account with ATT or T-Mobile in the US.
I don't need to buy a phone in Canada, though I suppose if it were cheap enough I could do that just to get the SIM - I once bought an ATT GoPhone for $10 that came with $15 of airtime, so that sort of thing could be fine. I really just want to get a SIM so I can get the phone on the local network then load it up with scratch-off card credit when needed.
Does anyone know what the various carriers typically charge for a SIM? Are there better (or worse) places to buy them? Who's got the best PAYG rates for local calls? How about calls to the US?