Paypal used to have a Guest account that you did not have to sign up for but I think that option is gone. Paypal is a good way to pay, this is actually a better option for US members since you are paying in CA dollars, it is a little cheaper. Or it should be since it is advertised on the subscription page as being in CA dollars.
If you want to send a check you can do that as well
Include username and SSRFanatic.com with the check and send to -
111 Peter St., Suite 700
Toronto, Canada, M5V-2H1