I have a scenario, where I want to enable two shipping methods at once, and make theme dependent on the type of product in the cart. If products with attribute A are in the cart, then shipping price with shipping method X, should be shown. If product with attribute B are in the cart, then price with shipping method Y should be shown. And if both are in the cart then prices for both needs to be calculated and displayed, individual to products corresponding to each attribute/shipping method? Any ideas how can this be managed in magento?