I've built a product - how do I take payments in the UK?
forkqueue: I'm based in the UK, and we use HSBC for payment processing on http://kutoken.com/The API documentation is a bit frustrating, but the service itself is good and gives you the option of recurring payments.  We can also accept payments in multiple currencies, which a lot of customers appreciate - if you bill people in GBP but they have a dollar card, how much they actually pay is an unknown.