Thanks for the kind replies everyone
Nina, for the multilagual customer service, I would try to contact your billing processor. These companies are getting bigger everyday and some of them should offer this kind of service.
Now, about the members area, we can definitely work on the translation of all your interface buttons, titles, main descriptions and so on. For your updates, I would advise you to 1) get freelance work from webmasters and friends from the business you have or 2) hire a translation company. I would be more than glad to point you some people that could work on this for you. It would be a pleasure to work with you on the development of a multilangual tour project for your site(s), so please feel free to email me (bruno at dickmansdesign dot com) or icq me on #107450119!
Take care and Best Regards!
Once again thanks everyone for the kind replies! All feedback is more than welcome!