Epoch is a really helpful company but so is CCBill if you go through your rep there.
If you're looking for minimal disruption I would go with Epoch in the CCBill cascade. You always have the option of swapping out who's Primary tho you will be using CCBill's system.
I would also take into consideration the % of European sales you do, what with Epoch's new PayPal pilot program in place. But ultimately why make the switch? You just want a differant set of issues to fret over? LOL Both companies are fine and good partners.
