Friend looking for a roommate

I have a friend--a thoroughly decent and nifty woman--who is looking for a roommate to take the place of one who's moving out of her Cambridge house. She lives with two other people, both men, and is looking for a fourth person. They have a "sweet but short tempered" cat. The rent is $700/month plus utilities, which tend to run about $100 per person in winter. $1400 is due at move in which includes a security deposit. The room is available Feb. 1. My friend is about my age, and is a teacher. I believe her roomates are also about the same age. She's happy to provide more info to anyone who's interested.