Don't know which forum to post, so thought to post it on here as I am Canadian

I have a ~$3000 payment come up in early June that they do not take AMEX, only VISA/MasterCard. I thought about getting VISA or MasterCard gift cards using an AMEX, but those fee (Activation or something else) seems to be a bit too much. Are there any other suggestion for a good sign-up bonus? I didn't want to just pay it with my BMO M/C or CIBC/TD Aerogold.

Thanks.