Last year I converted to the Eastern Arc. The Eastern Arc dish points closer to straight up, depending where you are located than does the Eastern Arc. Because of this the dish collects more snow and ice.
My solution was to get a dish heater, the stick-on type...which I have used before on the normal and dish 500 equipment (they work nicely). The model I ordered has a low voltage transformer, 100' of wire and is thermostaticatically controlled so that it only draws current when the temp. is below freezing. One guy on ebay is selling them for about $90 including shipping. I just ordered one and will install it within the week. If you are interested do a search for "dish heater" and you will see your choices.