Which Payment Gateway has no monthly fee and does not require SSL

Which of the compatible marketpress gateways have the least amoutn of fees and charges and do not require SSL.... basically i'm looking for the most affordable gateway of the marketpress compatible gateways.

Authorize.net AIM Checkout
Bitpay (alpha)
eWay Shared Payments
eWay Rapid 3.0 Payments (beta)
iDEAL (beta)
Manual Payments
Skrill (Moneybookers)
PayPal Payflow Pro
Paymill (beta)
PayPal Express Checkout
PIN (beta)
Simplify Commerce by MasterCard