Accepting International Credit Card Payments

I will be searching HN for this, but some of you wil have direct personal experience. I have a limited company in the UK, and at short notice I'm going to need to be able to accept a few hundred payments of around £30 to £100. Within the UK this can be done trivially using the BACS system. International transfers of money are an on-going source of medium to high-level pain. So I'm looking at setting up to accept CC payments. Who would you recommend, how long does it take to set up, and what are the associated costs? Many thanks for any replies, I'm sure lots of people here would find the information interesting, and possibly useful.