physics - 11:33 pm on Feb 17, 2006 (gmt 0)
The best thing to do is to get a payment gateway (with e.g. Authorize.net) and then you can send the card info directly to the online processor for verification. Note that PayPal also offers payment gateway services now in addition to the standard methods (though I haven't used them):
So basically people can pay with a credit card even though they don't have a PayPal account.