543208 Automatically Update Prices Zen Cart

Thanks for your interest in this project. The project is pretty simple. I need the prices for the options for the products to be automatically updated based on what you choose. For Example, I sell computers that you can customize on my website, so say we're looking at hard drives and there are three hard drives to choose from. The options will currently look like this: 500GB (-$15) 1TB 2TB (+$20) Currently no matter what you select the price for those options will not change. I would it like it so if you select the 2TB hard drive the prices change to this: 500GB (-$35) 1TB (-$20) 2TB Or if you choose the 500GB I would like the prices to change to: 500GB 1TB (+$15) 2TB (+$35) To get a better idea of what I would like you can go to my website [login to view URL], or to see what I want successfully implemented feel free to see our Ebay listings [login to view URL]