RokQuickCart has support for up to 16 currencies, which depends on the checkout option you choose. PayPal has up to 16 currencies and Google Checkout has 2 currencies (as shown in bold below).

• US Dollar
• Pound Sterling
• Australian Dollar
• Canadian Dollar

• Swiss Franc
• Czech Koruna
• Danish Krone
• Euro

• HK Dollar
• Hungarian Forint
• Japanese Yen
• Norwegian Krone

• NZ Dollar
• Polish Zloty
• Swedish Krona
• Singapore Dollar

The component has support for both PayPal and Google Checkout. Setup is very simple. If you are using PayPal, you will need your PayPal email address, and if you are using Google Checkout, you will need your Merchant ID. You enter these at Components → RokQuickCart → Parameters

Choose from 16 currencies with PayPal and 2 currencies with Google Checkout

With the extension, you can set Tax Rates that are automatically calculated into the price of items in your cart. You can set the Tax Rate, as a percentage value, or disable the option in its entirety.

If you are catering for a singular market, that use a single tax rate, then this feature will be very useful for you.

Moreover, Shipping follows a similar system, with the ability to add Flat Rate, Quantity Rate or Percent Shipping to the total price of a product. There are various options from enabling shipping in altogether to the cost calculation methods, all at Admin → Components → RokQuickCart → Parameters

RokQuickCart uses the powerful litebox type plugin, RokBox, for its images. RokBox is a popup type plugin that allows the loading of images, flash, PDFs, websites and other media items in a javascript powered window. It is extremely useful in consolidating space and not loading full-sized elements when they are not necessary

The extension has a RokBox mode, simple load your image into the RokQuickCart administrator, at Admin → Components → RokQuickCart, for a particular product and the extension does the rest.