A simple addon that will displays all the alternate currencies next to the gold display.
The counter is movable by holding ctrl and dragging it. You can lock it or reset it in the default positioning menu. Press Esc, then Interface, then Positions and find Currency Count in the list. Disabling the first checkbox locks it, only disabling the second checkbox makes it moveable without holding ctrl, and the blue arrow button will reset it's position.
You can enable and disable each currency in the options menu. Press Esc, then Currency Count.
You can also enable a background here to make it more readable.