Add to Cart to show price?

Sorry if this has been asked before, but I've been searching around but is there any way to show Add to Cart to Show Price? I know there is the feature of login to show price, but I just need certain items to be added to the cart and the sale price shows up in the cart only.

Thanks!

Bump? Anyone willing to make this mod or have one that might work? I need to be able to choose the individual product that instead of showing the price, will only show, add to cart to show price. It pretty much needs to hide the price on the product page and not show it until it is in the shopping cart.

Thanks!