when i worked with NATS, i found adding promotionals very easy once i got into the swing of it. and it's also very easy for affiliates to generate the linking codes they need. and you and your affiliates can track sales or hits by url, which is sweet.
why not offer ccbill as an option for those who are more comfortable getting paid by ccbill and offer the NATS program for the rest of us? that way everyone is covered.
best of luck to you with your new program
