Prices seem a little cheaper on HobbyCity. They sell Turnigy lipos which seem to be pretty good based on feedback here. Many have them, but you'd have to compare dimensions and weight to see how comparable they were to the YeahRacing 3200s you were looking at.

HobbyCitys power supply is cheaper, but its not 180watts which is way overkill PS for a 50watt charger.