E-junkie: Shopping cart or Buy Now buttons through Authorize.net
Integration with Authorize.Net will let you accept Credit Card payments from Buy Now buttons or Shopping Cart directly into your online merchant account. The setup fee for the Authorize.Net account would depend on the selected reseller, the monthly fees would vary depending on the features enabled but typically be ~ $20-30, the processing fee is 2.10% + $0.25 per transaction.