American clients would be happy with ACH withdrawal but that is useless for non-US clients. They would want to be able to withdraw by bank wire or Paypal. I expect Paypal will quickly decide you are some sort of merchant they don't like and freeze your account.
All of which are important concerns. PayPal has shown time and again that it will not support the bitcoin community, and would not be even considered until their policies change.
Perhaps its about time I invested some time into how to offer direct deposit in other countries. My concern is that these banks my choose to take the PayPal route, and freeze accounts associated with bitcoin.