My Cart has multiple currencies enabled, customers can pay in their own currencies with Credit Cards and Paypal.

I also accept foriegn Checks and Money orders (IMO) but only if they are in USD$. Aside from noting this fact in the checkout pages, enabling the change currency sidebox in Checkout and sending emails...

---> Is there a way to not let a customer finish his order (get to check out success page) with Check/Money Order as the payment method if the wrong currency (non USD$) is selected?<---