Our last 3 elec bills have been between $200-$210. That's for a small house with 2 people. That's with me home everyday, the air con going over summer and the LCD TV on all the time.
We use very few over head lights. At night, it's normally just the lamp on, and if a room is empty, the light is off. Our winter bill doesn't change that much, it may even come down a bit. We don't use our ducted heating, just the wood heater to heat the house (so we have to pay for wood) and our hot water service is one of those continuous systems that heats as you use it so it's not being heated constantly wasting electricity.