+1 for PayPal and IPN, it's relatively easy to setup - no waiting around to get a merchant account etc. However we do have some reservations about abandonment r

+1 for PayPal and IPN, it's relatively easy to setup - no waiting around to get a merchant account etc. However we do have some reservations about abandonment rate through PayPal - a lot of users are put off by having to signup for an account with them if they are new to the service.