Mixed currency products in Magento

I'm evaluating if Magento will be suited 开发者_如何学运维to a particular client. They have an unusual requirement where their products may have two price components, one in AUD and one in reward points. There are three combinations of prices: all AUD, all reward points and a fixed mix of both.

I was wondering if Magento supports such a scenario? That is, can it have products flowing through to the shopping cart which have multiple currencies?

My research indicates you can have different currency prices per store for a product in Magento, but you can only have a single price per product within the same store. Also, that the shopping cart only supports a single currency (though you can switch between currencies), so I'm guessing I couldn't add two products, one from each store to the same cart. Are these true?

If my research is correct, I may need to resort to some sort of custom field against the products. If I do that, am I going to have to toss the standard Magento shopping cart out and roll my own?

Actually this might simpler than you think. If you want reward points as currency you can use:

SweetTooth Reward points http://www.sweettoothrewards.com/learn/

It already does what you need, and I have used it in the past several times. The company is very professional and the extension is A++