How are they going to pay for this?
You need to cater to the customers' payment preferences. Most Net merchants have a Visa/MasterCard merchant account with their bank. Some customers prefer to pay by check and overseas customers may have a variety of credit cards that will be more difficult for you to accept. If you're selling to businesses, you should accept purchase orders. There is also software that lets you accept and verify checks or debit cards on the Net. If you're doing a lot of business in Japan, you may want to add JCB cards to the list of credit cards you'll accept. As you add new payment options, be sure to get the word out. Each new payment option you offer should lead to a headline or banner announcement on your storefront.