You could use either Express Checkout, Subscriptions w/ Website Payments Standard, or Enhanced Recurring Payments w/ Website Payments Standard. Either one of these would allow you to set up recurring payments. Enhanced Recurring Payments is the only one that would have a monthly charge associated with it. Express Checkout and Subscriptions w/ Website Payments Standard would not have a monthly charge. However, Enhanced Recurring Payments allows the buyer to sign up for a subscription without having to have a PayPal account, and they can just use their credit card. Express Checkout and Subscriptions w/ Website Payments Standard require the buyer to have a PayPal account. They can still be billed via credit card, but they have to have the credit card attached to their PayPal account. The subscription would bill the PayPal account, and the PayPal account would pull the funds from the credit card on the account.
With a PayPal account, your users can receive or send funds based on the country these accounts are located in.