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?

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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++