Magento: tweak the price of Configurable products

Hi, I am setting up an online store with a lot of configurable products. The problem is that the configurable product always show its base price. I want to show the minimum price: base price of the configurable product + minimum price of the cheapest simple product option. Look at this example: [login to view URL] The base price is 5,00€. However, both "Language and condition" options add 0.75€ more. Therefore, the final price is always gonna be 5,75€. I would like to show 5,75€ as the base price in the product page and in the category/search page. I just need the code and file that need to be changed - I can change it and upload it by myself.