please help me to choose one of these pumps: Laing D5 or Laing DDC Ultra. i heard D5 is more reliable and quieter, but noise isn't that i'm warning about. i'm going to order D-TeK FuZion, Thermochill PA120.3 and fittings/tubings (gpu & chipset w/blocks will be ordered later). i need it to have enough power to cool well. so, what is better?