Hello, I have run a successful free classified ad website. I now want to add a method for people to pay for a premium placement. Most of the backend obviously already exists with my database, so i don't need a full on shopping cart just something that if when a user is placing an advertisement, they tick the "Premium listing" box it will direct them to a payment page (preferably my bank, not paypal) and then comes back to the website where the advert is verified as having been paid for. Thanks