Show 2 prices, including and excluding Tax

Please could someone tell me how I can display 2 prices on a product, price including tax and product exluding tax, this is being asked many times but I cant find an answer though.

I am trying to figure this out too for inc GST and ex GST. Any help would be greatly appreciated :smile:

I use the sales tax module. See it in operation HERE.

You need to take care when installing it as it modifies a couple of files...