What we get here in the rest of the world, is something that allows for control of both temperature & water flow. Usually (but I can't really speak generally) with a freely-moving showerhead connected by a metal-jacketed rubber hose (which can be placed on a fixed position to the wall for overhead showering)
We have those too. In particular, I have one of those. You can buy them at Wal-Mart. I rent and I take it with me when I move (re-installing the original hardware).
