In theme options you can set your own currency symbol (whatever that currency is) and set your own thousand separator symbol.
You also have the option to use multi currencies for your listings display. We created an interface where you can add & manage your currencies, and there is a change currency widget that you can add on sidebars, topbar or footer.
How it works. When user selects a currency, we convert & show all prices on the page using the currency parity you added in theme admin. (You will NOT add different prices for different currencies.)
When the user selects a new currency, a “cookie” saves and stores the visitor’s preference. The next time he visits the website, we will use the currency he selected in the previous visit .
At the same time, there is no need to enter daily in admin and adjust the currency conversion values. We use a worpdress cron job that will check and update these values daily (from yahoo finance).