Okay peeps, I think that the wife has almost come around to the idea of getting the Pioneer. We saw it hooked up propoerly today in Currys for the first time today, I looks awesome! I have seen some pretty good prices for the 433, but there seems to be several variations. Can someone please explain, simply, what are the differences between the 433- HDE, MXE, PE. And then which model would you recomend? Thanks. Ian.