I'm currently using Pagseguro (via a very old, but still functional module) as the main payment gateway for my store, however I'm considering switching to Akatus, which offers some advantages over Pagseguro. I haven't decided on this yet, but I would like to know if there is someone out there who would be interested in sending me a quote for this job.
As CS-Cart is not really known in Brazil, companies aren't that much interested in creating modules for it, so I guess I'll have to pocket the expense. Akatus currently has free modules for Magento, Opencart, Prestashop and Woocommerce, if this is of any help. They also have a fully documented API, which I can happily translate or explain.