What credit cards we have as available payment methods in marketpress?

Hi!

So, what are the credit cards we have available? Just asking because I only see MasterCard when setting marketpress for multisite, and I have never heard of all those other payment methods, except for paypal; do these other payment gateways allow payments through all major credit cards? Is there any way I can make all major credit card companies directly available as a payment method?

Thanks.