This year my bill is running around 110–120 in the winter, and 60 or so in the warmer months. This apartment is electric heated, and I have two computers now rather than the one before. My tv and most of my electronics are not plugged in when not in use (save for the computers).
Last year at an apartment that had gas heating it was about 60–70 in the winter months, and 30–40 in the warmer months. I only had one computer at the time as well.