Payment Processing [resolved]

[mrstuff68]

I would like to put a payment function on my site. What I mean by this is that people that come to my site, they sign up for a subscription, they give me their credit card info. There is a signup fee, so they would get charged upfront right away, then there is a monthly usage fee, that is different based on how much you use the service. There usage goes into my database. Now for the payment part, i would like to have a system that would run once a month in which it would look at the peoples usage and then charge the appropriate amount to their credit card. Is there a service out there that would allow me to do this easily. I looked at paypal but they have recurring subscriptions but that is a fixed amount and not different for everyone that i would be chargeing. It also makes the users sign up for paypal if they dont have an account. I would like to set something up where you dont have to sign up for nothing if you are using my payment option. And where it can charge on a monthly basis.

Does anyone have any ideas? What can I use?

Thanks for your help