[oinksoft]

I think that you should just write the code for this yourself, interfacing with a PayPal-like service.

Good luck, I think there's a good chance you'll end up suing many cheapskates if you go down this road.

[admoin]

Very hesitant to write code for this, given the risks of handling customer payment info, security issues, etc. Would definitely much prefer some sort of off-the-shelf solution, and focus on the other elements of the product.

The second point is definitely a huge issue - I'm sure it's why we haven't seen much in this market.