Besides rent, every month we pay:
Cable+Internet: $110
Cell phones: $100
Electricity: $60
Gas: Summer(stove+hot water): $30, Winter:$70
Car Ins.: $120
Gas: varies, obviously
There are others (including student loans, ugh), but those are the important ones. I live near Boston, so it may be more expensive here.
ETA: Oh! About $40 for laundry, ha. And about $60 on cat food, but that's for 3.